An essential part of any Internet marketing campaign is the analysis of data gathered from not just the campaign as a whole, but each piece of it as well. An analyst can chart how many people have visited the product website since its launch, how people are interacting with the campaign's social networking pages, and whether sales have been affected by the campaign (See also Marketing Data Analyst). This information will not only indicate whether the marketing campaign is working, but it is also valuable data to determine what to keep and what to avoid in the next campaign.
The concept of affiliate marketing on the Internet was conceived of, put into practice and patented by William J. Tobin, the founder of PC Flowers & Gifts. Launched on the Prodigy Network in 1989, PC Flowers & Gifts remained on the service until 1996. By 1993, PC Flowers & Gifts generated sales in excess of $6 million per year on the Prodigy service. In 1998, PC Flowers and Gifts developed the business model of paying a commission on sales to the Prodigy Network.