ProjectWorld 2.0

Ok, I know I hit this theme a lot, but I can't help it. I want my web 2.0 tools to be integrated. When I have a new collaborative project, I want to create a google group, a wiki, a blog and I don't what else. But i don't want them all to be separate: (a) I don't want different urls, each with their own passwords and each requiring me to invite all the same people, and (b) I don't want to have some redundant capabilities and need to decide which tool to use for that functionality. 

I want to go to a website similar to, say, Blogger, and press CREATE NEW PROJECT WORLD. It would then create a single place where there are wiki capabilities like collaborative editing with a record of who did what, file storage capabilities, blogging+commenting/emailing within the group, etc. Just one big thingie.