PDFs have been the bane of every Internet-goers life for far too long. Oh, you accidentally clicked into a huge PDF? Screw it, better go get coffee and come back in a few minutes. Hopefully your computer has stopped grinding away by then.
Wikinvest got its start five years ago as exactly that: a wiki for investments. Now, after tracking $30 billion worth of assets, the company has twisted that data into a consumer site with better tools, a better interface, and a business model.