Interestingly, I just went to a talk last week talking about how angel investors are learning to fill that gap in the funding space (http://blog.nextny.org/2008/04/11/the-insider-secrets-of-ang...). They are banding together into groups, and using a common backend platform (AngelSoft) to make it easier for angels to evaluate investment opportunities. Admittedly, the speaker was the CEO of AngelSoft, so he's biased (they've identified the funding gap as a market opportunity and moving towards exploiting it). Seems like an interesting possibility.