Abstract: A method of distributing ad units for presentation with video content in a packet based communication system is provided. In one embodiment, the method includes storing campaign criteria for each of a plurality of ad units in a memory wherein the campaign criteria includes ad unit type information, network identifying information, temporal information, and constraint data. At least some of the ad units may comprise video data. The method may further include selecting an ad unit for delivery based on the campaign criteria and generating information identifying the selected advertisement. In addition, the method may further comprise determining that the anticipated impressions for an interval exceed the number of ad units to deliver during the interval, receiving a second request for an ad unit of a particular ad unit type, selecting one of a plurality of default ad units of the particular ad unit type; and transmitting information identifying the selected default ad unit.

Abstract: A method of using a mobile telephone network to provide a contest via handheld communication devices is provided. In one embodiment, information is made accessible via web site, email, print media, and/or television. Participants then register to compete in the contest. Next, for each participant the server or other system performs the steps of receiving a short message service message that indicates a first request for a question from a participant, transmitting a plurality of short message service messages that each include at least one question to the handheld communication device of the participant, receiving replies to the transmitted short message service messages that include answers of the participant, determining a score for the participant that comprises the number of correct answers received from the participant, and determining a response time for the participant. The participant having the highest score and smallest response time may be identified as the winner.