Background Task: How to?

Hello everyone, my app is Twitter based, and all I have to do is get
the tweets of a given user and retweet it in other twitter profile..
so when user1 tweets, user2 must automatically retweet. I think I must
write some background job to make this work but I don't know how? Any
ideas? Any gem intended for things like this?

Thanks!

Check out these gems: http://ruby-toolbox.com/categories/queueing.html

I've used delayed_job and have been happy with it.

Thanks!