I have found the following sites to be some of the best sites on the internet for genealogy research. I hope you agree. Have a great time searching for your ancestors!
http://www.oocities.org/Baja/1903/genealogy.htm
http://www.familysearch.org/
http://www.ancestry.com/
http://www.ancestry.com/ancestry/search.asp
http://www.cyndislist.com/
http://www.rootsweb.com/
http://www.usgenweb.com/
http://lcweb.loc.gov/rr/genealogy/
http://lcweb.loc.gov/coll/nucmc/nucmc.html
http://genforum.genealogy.com/
http://www.profusion.com/
http://www.dogpile.com/
http://www.alltheweb.comile.com/
http://www.mamma.com/
http://www.theultimates.com/
http://www.MyFamily.com/
http://www.nara.gov/nara/nail.html
http://www.nara.gov/genealogy/
http://www.biography.com/
http://www.findagrave.com/
http://www.censuslinks.com/directory/
http://www.pbs.org/kbyu/ancestors/
http://disney.go.com/ads/sponsors/ancestry/index.html
http://www.family-reunion.com/
http://mapping.usgs.gov/www/gnis/
http://www.digiserve.com/heraldry/index.htm
http://www.glorecords.blm.gov/
http://www.corbis.com/
http://vitalrec.com/index.html
http://www.sierra.com/sierrahome/familytree/community/webcast/