By Bruce Feldman | CBSSports.com Senior College Football Columnist
LOS ANGELES -- Like most athletes by now, Khaled Holmes and Matt Barkley have taken to Twitter. Heck, like many of us, they have been taken by Twitter. They're always checking their feeds whether they're walking around campus, eating lunch or tapping into it while hanging around the house and watching TV.
"You can't just watch TV anymore," Holmes says.
Holmes, though, isn't just active on social-networking -- he is actually getting a master's degree in it. The 22-year-old, who also happens to be Southern California's starting center and an all-American candidate, is pursuing his graduate degree in Social Media/Social Marketing as part of the USC's Annenberg Program on Online Communities (APOC).