I'd certainly recommend that anyone that has done autosomal testing to
upload their results to GedMatch.com. This site provides a great way
to find matches from all of the major testing companies. If you've not
used it, I wrote a tutorial that may be helpful -
http://smithplanet.com/stuff/gedmatch.htm

It would be a good idea to check your GedMatch one-to-many list for
the surnames of folks in this group. It's most likely that our shared
direct male line ancestors are too far back to have shared autosomal
DNA from them, but it's possible we're related in other ways.

Thanks,

Jared