December 16, 2009 by wind333
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December 15, 2009 by wind333
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December 14, 2009 by wind333
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December 12, 2009 by wind333
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Nabble – cassandra-user@incubator.apache.org – Cassandra users survey
tags: twitter, storage
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At twitter we’re working on using Cassandra to replace our currents
storage for all tweets. We have a cluster in production that’s being
populated outside the the user-critical path (ie, the cassandra
writing is async).
Additionally, we’re testing and evaluating for basically everything
else in our stack.
We evaluated a lot of things: a custom mysql impl, voldemort, hbase,
mongodb, memcachdb, hypertable, and others.
-ryan
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Stuck On Advanced Game & Graphics Math? MIT OCW Courses FTW
tags: video, Lecture
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Axod’s Hack: WebSocket – some numbers
tags: WebSocket, benchmark
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Chromium Blog: Web Sockets Now Available In Google Chrome
The Web Sockets API enables web applications to handle bidirectional communications with server-side process in a straightforward way. Developers have been using XMLHttpRequest (“XHR”) for such purposes, but XHR makes developing web applications that communicate back and forth to the server unnecessarily complex. XHR is basically asynchronous HTTP, and because you need to use a tricky technique like long-hanging GET for sending data from the server to the browser, simple tasks rapidly become complex. As opposed to XMLHttpRequest, Web Sockets provide a real bidirectional communication channel in your browser. Once you get a Web Socket connection, you can send data from browser to server by calling a send() method, and receive data from server to browser by an onmessage event handler. A simple example is included below.
tags: Chrome, API
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You can use Google Chrome and pywebsocket to start implementing Web Socket-enabled web applications now. We’re more than happy to hear your feedback not only on our implementation, but also on API and/or protocol design. The protocol has not been completely locked down and is still in discussion in IETF, so we are especially grateful for any early adopter feedback.
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yFrog Launches Twitter Clients For BlackBerry And Android
tags: twitter, picture
Posted from Diigo. The rest of my favorite links are here.
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December 11, 2009 by wind333
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December 10, 2009 by wind333
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What Not To Build
tags: no_tag
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Hadoop and Solr popularity continue to scale well
tags: scalability
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Twitter Spawned 50,000 Apps To Date, Will Open Up Firehose For More
tags: twitter, API, data
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Four announcements:
1) Firehose! No details yet (coming early 2010), but everyone will be getting full access to the data stream. This is pretty significant news.
2) New home for developers: new website launching within the next few weeks, including status dashboard, tutorials, and much more.
3) Anyone making OAuth requests to Twitter is soon getting an increased rate limit (10x) – about to launch API for browser-less apps, and starting Basic Auth decprecation in June 2010.
4) Twitter is hosting an official developer conference called Chirp
in San Francisco next year.
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Google Web Toolkit: Now With Speed Tracer, Code Splitting, And More
tags: tools, Development
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Official Google Blog: Faster apps for a faster web: introducing Speed Tracer
tags: Chrome, Firefug
Posted from Diigo. The rest of my favorite links are here.
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December 9, 2009 by wind333
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December 8, 2009 by wind333
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11 Chrome Extensions, For Starters
tags: chrome, extensions
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Cycle Gap: Paul Graham On Two Kinds of Programmers and Painters
tags: Programmer
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Face detection with PHP – Website and PHP performance on xarg
tags: Face, detection
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Assistly – make your customers smile 
“Turn your customers into evangelists by providing outstanding support”
tags: no_tag
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FT.com / Reportage – The rise and fall of MySpace
tags: Case, study
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Hacker News | Someone Stole My Startup Idea – Part 2: They Raised Money With My Slides?
tags: no_tag
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Ethics aside, if a company/startup can’t be bothered to make new slides after stealing an idea, it will likely make similar inflexible “shortcuts” later on and fail miserably (as the article showed).
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Someone Stole My Startup Idea – Part 2: They Raised Money With My Slides?! « Steve Blank
tags: Startup
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While the common wisdom said that our success was going to be determined by which company executed better, the common wisdom was wrong. In a startup success isn’t about just execution, it’s how well we could take our original hypothesis and learn, discover, iterate and execute.
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140it: Condense Ur Text For Twitter When It Won’t All Fit
tags: Twitter, ideas
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Chromium Blog: Technically speaking, what makes Google Chrome fast?
tags: chrome, tech
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Build a system, not a product « Opportunity Cloud
tags: Startup
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The master grows a
system. She knows that no matter how good she thinks her idea is, what matters is only what the customer thinks. That is why the master builds her startup as a
learning system that can adapt to new findings – evolve. She knows that in a startup, both the
problem and the solution are unknowns. The idea is useless until proven otherwise. The product is useless until proven otherwise. So you must always be learning.
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The master builds her product and her entire company like a living system, an organism with eyes and ears, agile and adaptive.
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How to Discover Your Life’s Purpose – 7 Questions to Ask
tags: self-improvement, self-development
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I notice when information is not presented in a clear, practical, and simplistic form. This is a sign of my purpose. I’m obsessed with practicality and simplicity. When I teach, I try to teach in a very practical and simple way.
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- What sparks your creativity?
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These questions are signs to your purpose. They’re pointing you in the direction of a specific purpose. One question alone doesn’t tell the whole story; you must look at all of your answers collectively. Each answer is a piece of the “purpose” puzzle.
Study these questions, and your answers, and you will be well on your way to discovering your purpose. Thank you for reading!
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EtherPad Blog: EtherPad is Back Online Until Open Sourced
tags: etherpad, collaboration, wave
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Gojko Adzic » Improving testing practices at Google
tags: testing
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Google had a team of Test Mercenaries, who joined different teams for a short period of time to help them with testing. In most cases, they could see what was wrong after a few days and started helping the teams, but the effort wasn’t a success. When they left, teams would not improve significantly.
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Hacker News | Aardvark Mulls Over A $30+ Million Offer From Google
tags: no_tag
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Here’s another way to look at it: not only do they get their employees to spend 20% of their time working on their own cool stuff for Google, they have ex-employees spending 100% of their time working on their own cool stuff for Google.
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Lessons Learned – Viral Marketing – For Entrepreneurs
tags: viral, marketing
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A short study of this web site reveals that a hugely important factor for success in startup companies is finding ways to acquire customers at a low cost. In the
Business Models section, we looked at the perfect business model:
Viral customer acquisition with good monetization.
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To give you a preview of this post, what you will learn is that there are two key parameters that drive how viral growth happens, the Viral Coefficient, and the Viral Cycle Time.
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In YouTube’s case the Viral Cycle Time was extremely short: a user would come to the site, see a funny video, and immediately send the link on to their friends. Tabblo, on the other hand, had a much longer cycle time. A customer would post some photos on the site and invite their friends. The friends might see the photos on Tabblo, and like the experience and decide that they would use the site the next time they took photos they wanted to share. However, that is where the problem came in: it could take months before they next took photos, and decided to share them.
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The most viral products are those that only work if they are shared. For example, Skype only worked in the early days if you got your friends on to Skype, otherwise you had now way to call them. If you have an application today, think about how you can make it social, where it would work better by sharing data with friends/co-workers. That provides a great incentive for customers to invite their friends/colleagues to use the application.
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You should also be looking for ways to encourage customers to invite people at various junctures in their use of the application. And of course, you should be asking yourself the question: is the value proposition of your product really that compelling that your customers will want to share it with others?
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Another great way to increase virality is to incent customers with a reward for every customer they successfully convert. Since this can result in an individual feeling guilty that they are making money off their friends, the best way to do this is to also provide the friend that is receiving the invitation with an equal incentive. Now your customer will feel like they are doing their friends a favor.
Posted from Diigo. The rest of my favorite links are here.
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December 7, 2009 by wind333
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Mozilla Labs Design Challenge: Summer 09 – together with IxDA and Johnny Holland
tags: tab, design, ideas
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Mozilla Jetpack for Learning Design Challenge
tags: jetpack, Learning, Annotation
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Send us your ideas for Firefox add-ons, preferably ones created with Jetpack, that can turn the web-browser into a platform for rich personal learning. You are not restricted to work on any particular type of application. Here are a few examples to get you started:
- Turn social bookmarking and page annotation into effective learning tools (for example by including peer-assessment features).
- Allow users to easily compile personal e-portfolios (for example, by combining their own works — photos, comments, articles—with testimonials others have written about them).
- Let the browser suggest relevant materials (for example, by automatically identifying additional articles based on what sites a person visit or which topics they search for).
- Support social learning communities (for example, by making it easy to find and connect with others who share similar learning interests).
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Aardvark Mulls Over A $30+ Million Offer From Google
Find answers through your friend network. It seems many services try to tackle this problem. A hard one.
tags: no_tag
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Their secret sauce is the way that they find the appropriate person to answer each question, and how they use your answering history to give power users priority in getting their own questions answered. I’m not terribly familiar with ChaCha’s product, but I would be willing to bet that under the hood it doesn’t have as much going on as Aardvark. If you’ve been looking at their hires and job postings on their site, they are bringing in a lot of high-end AI and NLP talent.
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What Aardvark is working on is the future of communication. It helps manage the collective knowledge of your friends and associates in much the same way that Facebook manages your social relationships and information. It takes a far more focused and structured approach than just blasting out “lazyweb” questions on Twitter. This wouldn’t just be a talent grab for Google. There are a reasonable percentage of searches that Google cannot answer by spidering the web, but Aardvark can. Opinion questions are a decent-sized chunk of the search market, and often lead to purchases (”what is the best looking 42″ LCD around?”, or “what is the best bar to meet cougars in Vancouver?”).
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Just take the offer. It’s a feature better implemented in a larger product, rather than hacked into instant messages. To me it’s extremely annoying. Googling for an answer is a habit that I don’t feel like breaking to ask a question to random pool of pseudo contacts in the hope for an answer. Maybe I’m just not a passive tard, but I rather just get the answer and do it right myself when I need to know something.
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Vark is a great in concept. It looks great on paper. It looks like a cool service until you realize that 90% of the time the person on the other end just Google’s the answer and sends you the link to the first search result.
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A lot of players have tried to take a stab at this.. and all of them failed (latest being AskMeNow). the only difference this time a round is that facebook connect has been made available.
facebook is the life of this service.
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Why Introverts Can Make The Best Leaders – Forbes.com
tags: leadership, introvert
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1. They think first, talk later. Introverted leaders think before they speak.
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2. They focus on depth. Introverted leaders seek depth over breadth. They like to dig deep, delving into issues and ideas before moving on to new ones.
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3. They exude calm. Introvertedleaders are low-key. In times of crisis, they project a reassuring, calm confidence
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4. They let their fingers do the talking. Introverted leaders usually prefer writing to talking. T
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5. They embrace solitude. Introverted leaders are energized by spending time alone.
Posted from Diigo. The rest of my favorite links are here.
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December 6, 2009 by wind333
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