The internet’s largest genealogical resource is on another roll. Ancestry.com has added one database after another (at last count, there were 24,000) since its debut on the web, and now one of its latest projects is also growing by leaps and bounds.

This week Ancestry.com announced that more than 275 million individual profiles and more than 3 million family trees have been created on the site since it debuted new tree-building and sharing tools in July 2006.

Ancestry.com says users have also attached 30 million family history records and uploaded 2 million photographs.

“The combination of family and social networking with the most comprehensive collection of digitized and indexed family history documents has been a powerful catalyst behind this user-generated surge,” said Tim Sullivan, CEO of The Generations Network, parent company of Ancestry.com. “In the past year we’ve seen a remarkable networking effect as people use
Ancestry.com to make great discoveries and share their findings with family
members,” says Sullivan.

Ancestry.com credits its user-contributed growth to two major content releases — the biggest online collection of African American historical documents and the Web’s leading compilation of U.S. military records.

Site traffic reached and remained at unprecedented levels in a prolific year that also included the announcement of a groundbreaking venture with Sorenson Genomics into the DNA genealogy field. The success was preceded by the 2006 launch of the only complete online U.S. Federal Census Collection and the largest Internet set of U.S. passenger lists.

Ancestry.com users create profiles for each individual in their family tree, share memories, upload photos, record conversations and interviews — and invite family members to do the same. Users then search Ancestry.com’s extensive collection of more than 5 billion searchable names to find historical documents that capture their family story. Users can also connect on the site’s message boards, some of the most active boards on the web.