This is for anyone into team management, or even just familiar with computer softwares.

I'm looking for a service (paid or free) that allows a team to input all its users, and for users to track those members' activities and track feedback. It should be a simple system, possibly closely integrated with e-mail? I largely want to be able to allow fellow group members to provide feedback (like the vote-up or vote-down system here on Macinsiders) on a fellow user's e-mail.

This would be used for accountability of members. I want to run a "competition" so to say, where fellow group members can say "I like this information/activity that this group member did".

Anything like this exist?

i believe an ambitious group of students including two Mac engineers recently created such software for a Global Start up competition (and won!). They are called GroupNotes
http://www.groupnotes.ca/

Their Global Startup battle promotional video can be found here:
http://techcrunch.com/2012/12/05/sta...ation-product/

Hmmm... I was under the impression that's not the same thing. It might be better for accountability on a group project where research is King, but I'm looking for a team that runs an organization. So people might be sharing information, and members would be able to rate the e-mail within which the info is contained.

Actually, this MAAAAAY be adaptable. Thanks very much for that tip I even know about that group too... It didn't occur to me though.

Any other tips/pointers would work though. I'm going to contact the team and see if they think their Group Notes would be adaptable.