Since you spend time online, please visit these websites. They track the number of unique IP addresses each day, then get that much funding from their advertisers. It's pretty ad covered, but then again it helps others and takes very little time.

www.thehungersite.com
www.therainforestsite.com
www.theanimalrescuesite.com

There are three others to make six total, all linked to each other via tabs at the top of the screen. Happy Clicking!