ZydoSEO - 5:41 am on Feb 29, 2008 (gmt 0)

Serpent is correct. The search engines will see each unique URL as a different page.

So if you have 5 partners that link to you each with different tracking ids and one partner that doesn't include a trackingid as in:

www.example.com?trackingid=1
www.example.com?trackingid=2
www.example.com?trackingid=3
www.example.com?trackingid=4
www.example.com?trackingid=5
www.example.com

Then the SEs will see those as 6 pages each w/ 1 link, not 1 page w/ 6 links.