Angels

Walnut Venture Associates - Boston
Group of angels invests in New England start-ups.  No stated interest in biotech.

Common Angels - Boston
Well-known group of angels, though have no history or stated interest in biotech.

The 128 Venture Capital Group - Boston
Group gathers 2nd Thursday of each month at local hotel for breakfast. Evaluates start-ups.  Entrepreneurs may pre-register and attend meetings.

Garage.com
Internet-based service matches start-ups with its registered angels.  Most famous and possibly successful firm in its class. Pre-screen plans.

UniversityAngels.com
Internet-based network of angels. UA has portals for many universities and specializes in matching start-ups coming from a particular academic institution with alumni interested in investing.  Pre-screen plans.