Two major genealogy-data providers have embraced a familiar family history credo: Family trees grow more quickly through collaboration. Genealogy.com <www.genealogy.com> recently teamed up with the Heritage Quest division of ProQuest <www.heritagequest.com> to offer two new Internet subscriptions. Family and Local Histories gives you online access to more than 16,000 genealogy books, and an expanded census collection now covers eight decades.

The data in these subscriptions comes from ProQuest's HeritageQuest Online service. ProQuest sells that service only to libraries, so its partnership with Genealogy.com gives individual genealogists the opportunity to access some of those valuable sources from home. We sized up both subscriptions — here's a look at their record rosters, along with some winning strategies for ancestor searches.