Free tool to automate content of Twitter feed / posts

Guys, do you know any free tool to automate content of Twitter feed / posts?
I want to specify feeds or keywords, corresponding accounts, and frequency of posts, so the tool would fetch the posts from the feed and display in your Twitter account.

Any suggestions?

 

socialoomph lets you feed a blog into twitter, anybody's blog or feed too. Not sure if it is available in the free version. You could also set up yahoo pipes

 

No, unfortunately socialoomph doesn't have it with free account. So, how one sets up yahoo pipes? could you please explain as to non porgrammer?

 

i use http://twitterfeed.com/ for similar purposes and find it quite good..u myt give a try

 

socialoomph is the best.. also try tweet attacks

 

You can use twitter feed or twitter live, they both work fine.

 

Twitterfeed works great for what you are trying to achieve, it's free.

 

I think Tweet adder is one of the awesome service. You can check it out. Hopefully it will work for you.