I Like To Fly From United States of America, joined Feb 2001, 1188 posts, RR: 2 Reply 1, posted (11 years 7 months 1 hour ago) and read 814 times:
It is a type of advertising, companies are paying to have those words link to what they want. It is caused by you downloading a program, usually free, that also puts this software on your computer. I have never seen it, only heard people bitch about it, so I can't tell you how to get rid of it. But it is a borderline virus and hard to get rid of. Search the internet with something like http://www.google.com for instructions how to get rid of it. Entire websites exist on how to get rid of it, so it shouldn't be hard to find.