I'm leaning toward going with gplv3 but...

[Aaron Aichlmayr]

I'm thinking of going with gplv3 but I have a few questions first that I 
don't care that I get "no warantee" answers as they approach the legal 
side. First I wanted to have an extension system where the extension 
devs are encouraged to share but are allowed to keep their extensions in 
house as long as they did not edit the original code. Second I wanted to 
allow people to have paid services for hosting this framework but any 
users are welcome to download a copy of the source themselves. Would the 
gpl allow these or should I go with the lgpl