Googlert "Googlert is an experimental free service which keeps you updated on what the web is saying about you, your products or your interests. It does this by performing regular Google searches on your behalf and sending an email alert containing any new results that appear."

Pulled the previous from Ev. Checked it out. I used to use Spy... something, I forget now. I didn't have that many searches and mostly what I turned up wasn't all that relevant. Maybe I'll give this a shot at some point.