One of the truly fun things about the internet, from my perspective, is the possibility for collaborative work. The DIY approach to molecular biology, esp. gel electrophoresis (through a drinking straw!) is something I've been reading about recently: it's interesting to see where people can go on a shoestring budget. They can't amplify fragments of extracted DNA and transillumination without toxic dye remains difficult...but it's exciting to see people considering these problems.
(via Boing Boing)