BloggerKit is a new free service bloggers can use to insert contextually relevant products from Amazon. If you're a member of the e-commerce site's affiliate program you earn revenue when readers buy products from the extensive Amazon catalogue. The reason I have not personally ever used Amazon is that creating a list of recommended Amazon products was painfully time consuming - but no longer. BloggerKit lets you setup such content-related Amazon lists effortlessly by simply copying the BloggerKit code to your blog template, and including some keywords (tags) in your post (I really did not care for the appearance of the bk_keyword: insert that is necessary but you can use comment syntax or within a span property tag to hide them. Overall, an immensely creative idea and something certainly to check out.