My logo in RSS feed

Hi, the site in question is http://www.robotliving.com.
What I want to do is add my sites logo to my RSS feed. For example, if you got to netvibes and add the feed for Tech Crunch, you see the Tech Crunch logo in the top left of the rectangle. How do I add my logo to my rss feed so that it will show up in places like this?
Also does anyone know how to add a logo to a website so that it will show up when you bookmark it?
Thanks.