How Angel Investing Works – BusinessWeek (click to open link)
While VCs make much larger investments, angel groups give from around $25,000 to $50,000—and tend to want real involvement with the company
Here is a good brief by Tom Taulli that explains the difference between Angel Investors and Venture Capitalists. He also references some websites you can explore to locate a good fit angel group.
“Is your company looking for an equity investment under a few million dollars? You might first