I've become a fan of genetic genealogy. I don't believe it can replace conventional genealogy, but it sure can help clarify questions and find distant relatives.
Regarding the latter - I bought the Family Finder test last year, and I've found a few hundred relatives. A few of these relatives have posted their genealogies on the FamilyTreeDNA website. I've noticed a few trends in their genealogies.
First, I have a number of relatives who are related to me through my 4th great-grandparents Dionosio Antonio Baca and Ana Maria Sanchez. My closest relative on the site is Mr. F.M. who shares my 2nd great-grandparents Ramon Baca and Anastasia Padilla (making us 3rd cousins.) Ramon Baca is the the grandson of the aforementioned Dionosio Antonio and Ana Maria. Mr. R.M. is the fourth great-grandson of Dionosio Antonio and Ana Maria - making him my 5th cousin. Mrs. L.V.J.E. and Mrs. D.W are also my 5th cousins through this relationship. Mrs. L.T.A. has them as her 3rd great-grandparents, which makes her my mother's 4th cousin and my 4th cousin, once removed.
Dionosio Antonio Baca is the great-grandson of Ramon Garcia Jurado and his first wife Juana Antonia de Espindola y de las Heras. A number of my relatives are descendants of Ramon Garcia Jurado and his second wife Bernadino Hurtado. This latter couple are my 7th great-grandparents. Mr. F.T., Jr.; Mr. L.C.; Mr. G.G.R.; Mr. N.C.G.; Mr. B.M.; Mr. K.G.S and Mrs. N.C.P. are all descendants of this couple.
Other relatives are related to me through Diego de Torres, one of the founders of Belen, and various Montoya families. Two of my relatives, Mrs. H.M.C. and Mr. M.M., are descendants of Luis Maria Cabeza de Baca, my 4th great-grandfather. H.M.C. is descended from Luis Maria's first wife; both M.M. and I are descended from Luis Maria's 2nd wife.
I have personally contacted only a few of these people. A few of them are friends and genealogical colleagues of mine. One, who is a 5th cousin of mine, is the president of one of the leading genealogy societies in town. Many have roots either in Socorro, Belen or Pena Blanca.
I am still waiting to find a Zimmerly or Bourguignon family member to take a Family Finder test. I would also like to find a closer Torres family (one from Socorro, rather than Belen) on the site.