Major Search Engines

Yahoo! Search Marketing
Put your business in front of potential customers at the precise moment they're searching for what you sell.
LookSmart
LookSmart is primarily a human-compiled directory of websites. It gathers its listings in two ways. Commercial sites pay to be listed in its commercial categories, making the service very much like an electronic "Yellow Pages." However, volunteer editors at the LookSmart-owned Zeal directory also catalog sites into non-commercial categories for free. Though Zeal is a separate website, its listings are integrated into LookSmart's results.
Ask
Ask Jeeves initially gained fame in 1998 and 1999 as being the "natural language" search engine that let you search by asking questions and responded with what seemed to be the right answer to everything.
Google Advanced Search
google is the most powerful information resource humans have ever constructed. With over 8-billion references in its rapidly growing, organically generated index, google sets the standards other search engines follow.