Here’s a URL to use google’s search without ads (or other stuff, such as news results):
http://www.google.com/search?output=googleabout
I compared the search results to the normal google and they’re the same. Pretty interesting, I haven’t seen google that way for a long time. I bet this doesn’t last for long.
I found out about it here: http://labnol.blogspot.com/2007/05/secret-google-search-url-that-removes.html