MySpace dominates the social networking realm, with more than 85% of teens with online profiles saying that the profile they use or update the most resides on that site. Following on its heels is Facebook, with 7% of profile-owners updating their Facebook profile most regularly. Another 1% have a profile on Xanga and others told us that they have a presence on sites like Yahoo, Piczo, Gaiaonline and Tagged.com, among others. Teens who use social networking websites visit them frequently, both to edit their own profiles and to view the profiles of others. Almost half of teens who use social networks, visit them once a day (26%) or several times a day (22%). One in six (17%) visit the sites 3 to 5 days a week and 15% visit them 1 to 2 days a week. One in five or 20% say they visit online social networks every few weeks or less often, Pew Internet & American Life Project reports.