I just wrote a short article, Prosper - eBay of Loans, which you can find on OmniNerd.com. OmniNerd is a great site with many well-written informative articles and a very smart community. Their tagline - professional wrestling for the wicked smart! I look forward to reading OmniNerd's comments and user opinions about Prosper.
While we are talking about finances and OmniNerd, I'd recommend these two recent articles: