While I was vaguely aware of the Adobe Exchange, I hadn’t really checked it out until a recent purchaser of our Spelling Plus Library mentioned that he had been unable to find our component on it. While the Exchange is still in beta, and has some rough edges, it’s looking pretty good overall. I was able to submit SPL, and have it moderated and listed in under 48 hours.
I think one of the major weaknesses of the Flash platform is the lack of a strong component and source code ecosystem. The Exchange provides one of the key elements needed to grow this ecosystem: Providing a central location for finding and rating third party components.