If you or your student plan on using the Internet to help homeschool, you'll be using search engines almost daily. Not all web pages are listed on all search engines.
Search engines gather information differently and categorized differently.
Use each engine a few times until you find the one that works for you. To learn how the engine works. One of the most used search engines available on the Internet due to it's quick response, rapid indexing, and monstrous database. AltaVista is terrific for unearthing exact matches to highly specific queries. It loses its benefits with broad topic searches, which simply return too many results, too many dead links or misdirects, due to the enormous size of its database and the ability for users to submit pages with misleading indexing information.