The context of the question is important. If you substitute [tag:your-tag] for [tag:rsync] in [this question][1] and it's answers then you should get a feel for what goes where. There is though considerable overlap.

[Unix and Linux][2] was launched from beta some time ago. 


  [1]: https://meta.serverfault.com/q/2258/9517
  [2]: http://area51.stackexchange.com/proposals/3924/unix-linux