Openfolio’s interface looks a lot like Facebook. On the left side of the page is a user profile and below it is the familiar grid of faces used to chronicle friends or follows; it also has a feed of investment activity in the middle page. The company connects directly to user brokerage accounts to pull in information about their investments. Openfolio also aggregates public investments made by major investment figures like Warren Buffett. The platform doesn't reveal how much money a user has invested in a given stock, but rather the percentage an individual investment comprises of their total money invested. Like a social network Openfolio is free. Rather than offer investment advice, it tracks stock performance, shows users who else is investing in that stock, and how a user’s investments stack up against those of their peers.

http://venturebeat.com/2014/11/11/openfolio-and-coinbase-bring-something-that-bitcoin-investing-needs-transparency/