I've had clicks to an affiliate link from Overture with this string added at the end of the link and I have no clue what this is or what it means.

www.domain.com?affID&variegator=# The number sign can be any number, such as 47 in some instances.

The IP was traced back to Inktomi.

Could anyone tell me what this "variegator=#" is? I have never seen this before.

Thanks much.