Well right now it seems like Yahoo,Msn and Google are the Main Players in traffic and most popular in the Search Engine World. Even Though I really like the Smaller Search Engines like altavista.com as there search results are not full of spam sites and you do not see un-relavent search results where in google, some adult sites are using hidden keywords in there site that has nothing to do with what people are searching for and get into good search results in google and Yahoo, Just an Example why I like the smaller Search engines better sometimes. I think A9 from Amazon will turn out to be a key player in the future just because of Amazon's Popularity. I agree that don't always forget about the smaller engines as they are still sending some traffic to you, (Example: Ask.com) is a interesting search engine. Even Though back on the subject of this thread, I believe Yahoo has a much more relavent and clean search result feature then google based on search engine spammers techniques. However Google does more web searches then yahoo. But I never forget about the Small search engines or other ways that people may not think will work in bringing that traffic.