1) refers to a person who is (or wants to be) an internet personality or "celebrity."
2) someone who craves their 15 minutes so they spend far to much time on popular internet sites posting photographs and/or comments on various aspects of their life.
Jesse: Definitely not. They are just urban morons.
Being an Elebrity is essentially meaningless and the things that these people do are mainly for the sake of doing it. But most Elebrities profit from the work they do whether it be selling selling t-shirts via the internet or charging people for song downloads.
Elebrities are basically the same as mainstream celebrities, only they're careers are much much shorter.