These are some of the links that I have used and you may find interesting.
Cyndi's List of Genealogy Sites on the Internet
Family Crests and Coats of Arms Design Services
Family Tree Maker's Genealogy Site Home Page
FamilySearch Internet Genealogy Service
Genealogy.com The Leading Resource for Family History
HeritageQuest - Your Leading Resource for Genealogy Data
NEW YORK CITY Department of Records and Information Services (DORIS)
The New York Genealogical and Biographical Society