wiki-enhanced sites

Wikipedia was on NPR again yesterday. They mentioned the dude's wikia.com as some great new thing. So I checked it out and it seems to be simply hosted mediawiki supported by Google AdWords. Technologically, this is nothing exciting alongside pbwiki.com and schtuff.com, etc.

I am more interested in collaboration tools that include email-archives/discussion-lists, wiki markup and tags: Basically like free/better versions of BaseCamp.

• http://www.near-time.com/
  
• http://www.mailspaces.com/