Vendor business license

[Aquattro]

Correct, they are often individuals selling a higher volume of frags. My personal favorite frag supplier is such an individual.
For the intent of your question, whether a "business" holds a license or not will NOT determine the level of service received from said "business".
I don't imagine that at any time we would require a license to advertise.

We will, however, consider a SLA (service level agreement) with future advertisers and future renewals to those vendors wishing to host forums on the board. This is still in a development stage, but we're hoping to have something in place that keeps an open line of communication between members and businesses.