Meta Searches. You type a single query then these guys farm it out to several
well-known search engines and collate the results. Good for simple queries.
Single Search Engines
Still the best in my opinion. To get the most out of it try reading their book
"The AltaVista Search Revolution" or at least the help screen on the website.
You don't know how much you don't know :-)!
- Northern Lights
Pretty good as well.
Dejanews - THE archive of newsgroup posts.