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1) Firefox it self makes money because when people use fireforx to search on Google, FF gets a cut for any ads these ppl click on. It’s like Google Sitesearch on steroids.
2) One extention, BetterSearch, make money by altering the appearance of what my search engine results page (SERP) looks like. If I search for a product, and an Amazon icon appears on my SERP because of BetterSearch, if I click on the icon and buy the product, BetterSearch gets paid. It’s like inserting your Amazon affiliate link into search results.
hmmmmm…..so the top of my head answer is…..somehow integrate GOOG Siteserach or Ebay/Amazon/Whatever affiliate links into your extention.
There must be smthg else though…let me think about this…
Posted from Diigo. The rest of my favorite links are here.