Visa Network on Facebook: Viral, social marketing. Visa bought $2 million in advertising on FaceBook. Gave $100 advertising credit on Facebook to each of the first 20,000 U.S. businesses that download the Web application. Arrived online on Tuesday, June 29th. Apparently 80,000 small businesses are already on FaceBook. Google provides some of the services available on the Visa Network. Creative application of attempting to achieve holy grail of monetizing social networks.