Census Records - History of and How to Use Them: 
http://homepages.rootsweb.ancestry.com/~haas/learningcenter/

Downloadable Forms for organizing your research:
http:www.familytreemagazine.com/forms/download.html

Genealogical Relationship Chart (cousin how many times removed?):
http://genealogy.about.com/library/nrelationshipchart.htm

Sites with links to all county sites in all states: 
http://www.rootsweb.com/~websites/usa/index.html#county
http://www.usgenweb.com
http://usgwarchives.net/search/searcharchives.html   To search GenWeb Archives, it is best to go to the national search engine, choose your state and perhaps enter the county in the search string.   As usual, you have to play around with search possibilities.   They don't do wildcards.  (Thanks to Jo at WV. VA. NC. TENN. KY. AND MORE mailing list for this one!)

County Finders:
1) Rootsweb: http://resources.rootsweb.com/cgi-bin/townco.cgi
2) NACO: http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/usamap.cfm
        (This is great for finding cities or counties that are misspelled and therefore can't be located by rootsweb county finder!
         Also for determining when county was formed.  This is a favorite site!)
3) USGS: (Scroll down to USGS): http://www.searchforancestors.com/map/us.html
    The Rootsweb county finder is also on this site.

Where are nearby towns?
http://geonames.usgs.gov/

New Jersey County Formation: (scroll down to see chart)
http://http://homepages.rootsweb.ancestry.com/~windmill/html/nj%20counties.html

New Jersey Place Names; old and present:
http://www.genealogy-quest.com/collections/njplace.html

Lots of links to places for Virginia research:
http://www.rootsweb.ancestry.com/~vaaugust/augusta5.htm new 4/11/12!
https://www.familysearch.org/learn/wiki/en/Virginia new 4/11/12!

Bob's Genealogy Filing cabinet - A collection of research about Virginia families - years of work available to you. http://www.genfiles.com/

West Virginia County Formation:
http://www.rootsweb.com/~wvmonong/

North Carolina County Formation and Dated Maps:
http://statelibrary.dcr.state.nc.us/genealogy/countyform.html

North Carolina State Library:
http://statelibrary.dcr.state.nc.us/patrons/genealogists.html

Georgia Vital Record Online (partial birth & death & Colonial Wills): 
http://sos.georgia.gov/archives/

Bill Buchanan's great list of Canadian research links  (link has been fixed)