Zotero -- Collaborate Web-based Researching

I'm on the hunt for a good bookmarking tool I can use across my computers and my iPhone.

Along the way found an interesting "research" tool: Zotero

• http://www.zotero.org/

Basically, it's a personal "Library" with social media tools.  The idea is that you can capture and organize online and library resources.  But then you can also use the site to find others who are potentially researching the same topic you are.

While I don't have a use for it, right this moment, seems like a cool tool and a fine example of how social media can be used for positive/constructive purposes.