This blog makes money... erm gifts!
I lately discovered CuriousInventor as they sell some quite interesting diy kits like the touch strip LED display that looks perfect for synthesizer controlling to me (Hope to get one for christmas). But the really interesting thing to me is that you get a PanaVise Junior Clamp for free if you link them from a page with Google PageRank of 2 or higher (this page had 3, when I checked). So lucky me, I get a gift worth 18$ at their shop for free. Who said making profit from the web would be hard? ;)