For Birgit (& others who may question Allen's impartiality),
Yes, you have a legitimate reason to question Allen Krueger as to whether or not he receives any benefit by mentioning the DNA testing company he uses. But I must say that his appeal did not strike me as being motivated by any goal other than a sincere hope to locate his great-grandfather's family. He went to a lot of trouble telling us what he knows about his family, and for this reason I am willing to accept his widely broadcasted message as being largely non-commercial (despite his mention of a specific company by name).
He is faced with a problem similar to what we all faced in the the early days of genealogical software, when different platforms did not communicate --share data-- well with each other. I believe there are three or four major companies operating in the field of DNA testing, and it is not clear to me that we've reached the stage yet of having transparency. To achieve the broadest possible comparisons, one may still have to post test results to various sites, if not actually to test with more than one company.
As an editor of a monthly newsletter of a genealogical society with a primary focus upon immigrants to America, I'll now mention his quest in my next issue. And, who knows?, with a little luck having a few more people to take the test may result in my gaining my own first connection to a distant cousin through the Family Finder test (autosomal DNA testing)….
Best Wishes,
Gordon Seyffert
Altadena, California, U.S.A.