Let's declare a new category of companies - call them Finance 2.0 companies (similar to those Web 2.0 companies) - that includes folks like Zopa who are purposely conversational with their market and customers.
The latest Zopa blog post, New Kid On The Block, welcomes Prosper.com as a competitor in this space. Sorta reminds me of that Apple ad way back when IBM launched its first PC. We'll have to see whether Prosper.com joins the Finance 2.0 club - or not. No signs of a company blog from them yet.
Separately, Umair Haque blogs on his BubbleGeneration blog about Prosper.com and points out that Benchmark Capital has invested in both companies. He also discusses the potential size of this market opportunity and suggests the last similar innovation in the consumer financial services space was PayPal.