FamilyFinder is FamilyTree DNA's autosomal DNA test.
A comparison of the autosomal DNA tests offered by the three main companies is available on the ISOGG Wiki.

Such tests don't necessarily fit neatly into Surname or Geographical projects, although do enhance both.

Participants of such tests are strongly recommended to upload their raw data files to GedMatch, a free, passworded site where cross company comparisons may be made of the results of 23andme, ancestry and FamilyTree DNA autosomal testing.
There are many useful tools available there to help pinpoint your matches.

The Project(s)

  • FFLornaHen Project to group all those whose FamilyFinder autosomal DNA tests Lorna monitors, and for those who match them who wish to explore further.