Yammer is doing well on this area. I have never tried it.
There is also Trello for tasks.
For organizing tasks/bugs/code you can go with Redmine/Bugzilla/Gitolite/Gerrit.
Yammer is doing well on this area. I have never tried it.
There is also Trello for tasks.
For organizing tasks/bugs/code you can go with Redmine/Bugzilla/Gitolite/Gerrit.