Referral Program - See Affilate Program, Also used by some advertisers to describe their Two-tier or Multi-tier programs.
Rich-Media - Media technology that has been either developed or enhanced to deliver interaction, multimedia, expanded creative space, transaction behavior, and interaction to the users through the web.
ROS/RON (Run of Site/Run of Network) - Provides the advertiser the opportunity to reach a broad audience by running ads throughout the network as allocated by MSN. Run of Site provides greater targeting by reaching members interested in a specific service, however without specific targeting criteria.
