The Smith DNA Project is at http://www.smithsworldwide.org - There are currently 198 matched groups- List is here http://www.smithsworldwide.org/smgrouplist.asp

The expanded list that shows all members in each group is here
http://www.smithsworldwide.org/smreportallkitsgrp.asp

There are over 2000 members in the project as of today. The matched grouping list does not reflect all members, just those that match with another participant.
Come join us-we are primarily a YDNA surname project but if you tested mtDNA or autosomal, come list your tree for comparison.