Bookmark This: New Hampshire Birth Records, Early to 1900 (Free)
Created by FamilySearch - the online site for the Family History Library in Salt Lake City, Utah.
This collection contains the digital images of the index/abstract of 500,000 early New Hampshire birth records.
The records consist of index cards that give the town and date of the event and often much more information. With the town and date, the original records can usually be located. Normally there is only one index card per child, but occasionally there is a corrected card before or after the original card.
Nice graphics too.