Custom Rss Feeds - Help

Hi guys.

I'm wondering if theres a online tool or application where I can put in the url's of various websites and have all the updates come into a source in a timeline manner.

I'm using this for the purposes of job hunting, and im targeting some companies but instead of opening up each companies job feed, to have this appear in one feed?

Is this even possible?
Your guidance is much appreciated.

Thanks!

Anthony