Here are some words of advice that Guy Kawasaki, one of Evan's expert authors, gave in an interview awhile back about seeking out angels:
"Some angel investors are members of angel groups, allowing them to increase their access to investment opportunities and giving them the possibility of investing jointly with other angels to hedge their risk. Tapping into these networks is one way to start looking for investors. Also make use of your personal network -- especially your professional advisors. Your network may well be able to suggest potential angels.
In looking for angels to target, don't forget that choosing an angel investor is a great opportunity to gain an advisor. So do your research. The best investor for your start-up will be the one who can contribute significant experience, knowledge, and networking opportunities, as well as the cash you need to grow your business."
Something to keep in mind...