There are quite a few pedigrees and results already posted at the Arthur Surname Project webpage. Check them out here:http://www.worldfamilies.net/surnames/a/arthur/
Also, if you have not already done so, I would recommend posting your pedigree. It will help other researchers contact you:http://www.worldfamilies.net/surnames/a/arthur/
If you want to join the Arthur Project which operates out of FamilyTreeDNA and WorldFamilies.net , please send an email to the project administrator:firstname.lastname@example.org
To join the project, you'll need to provide your pedigree (family tree), the name of your earliest known ancestor, and the test results you received at Sorenson.