[bigmickey]

Banking. This is already happening. Paypal has already forced banks (at least in the UK) to stop holding onto people's money for 3 days during account-to-account transfers; zopa.com is disintermediating the banks with a peer-to-peer lending model (as is prosper in the US I think?); fundingcircle.com is doing that for commercial loans; currencyfair.com is doing the same thing with FX transactions; kickstarter.com is making it possible for companies to raise money without going to the capital markets. To cap it all, bitcoin is challenging the traditional role of banking in controlling the money supply in the first place! In short, almost every aspect of banking is under attack from startups everywhere. To date I haven't seen much of a response from the incumbents. Maybe the effect is too small at the moment but it is exciting to watch how it unfolds :)