DNA testing companies I have used

Family Tree Dna:
http://www.ftdna.com/

12, 25, 37, 67 Y DNA markers and advanced 
markers; X chromosome; CODIS; R1a1 Deep Clade; 
mtDNA full genome sequence, H16.

DNA Heritage:
http://www.dnaheritage.com/

43 Marker Y DNA test; R1a1

Trace Genetics:
http://www.tracegenetics.com/

R1a Deep Clade tests.

Coriell Institute:
http://www.coriell.org/

Full genome scan for medical conditions.

23andMe:
http://www.23andme.com/

Scan for medical conditions and genealogical 
information.

Sorenson Molecular Genetics Foundation:
http://www.smgf.org/

37 marker Y DNA; mtDNA; and autosomal DNA testing.

The Human Family Tree, 30 Aug 2009

The National Geographic Channel is airing a new program, from the Genographic Project, The Human Family Tree, in the US this Sunday, 30 August 2009. Check your local PBS station for day and time.