Prior to Google, I used to use MetaCrawler (http://www.metacrawler.com http://www.metacrawler.com), which also still exists, and now simultaneously searches Goo

Prior to Google, I used to use MetaCrawler (http://www.metacrawler.com http://www.metacrawler.com), which also still exists, and now simultaneously searches Google, Bing, and Yahoo. The parent company also owns dogpile.com which now does the same search.