12 search engine web

1. www.google.com
2. search.yahoo.com
3. www.bing.com
4. search.aol.com
5. www.ask.com
6. www.yandex.com
7. www.dogpile.com
8. msxml.excite.com
9. www.gigablast.com 
10. search.lycos.com
11. mamma.com
12. www.webcrawler.com