Mobile advertising: Create an ad now and start reaching your new customers instantly. Communities - The community channel contains sites that have aggregated user content in some form or another. These mobile sites may include discussion groups, mobile page building services, forums, or even dating sites.  Entertainment - The sites in this channel provide users with information about the latest music, movies, TV shows, and other forms of entertainment. Many sites also offer downloads of trailers or user generated videos. And so on.