Appleseed is a platform. It's a combination of a social framework you can build upon and a protocol that can be implemented in other projects. The goal is for

Appleseed is a platform. It's a combination of a social framework you can build upon and a protocol that can be implemented in other projects. The goal is for most people to use Appleseed without ever knowing what Appleseed is, much in the way people use the web without realizing that their web server is Linux + Apache.