Judging by the number of popups I'd say it's probably not legit. However, if I were you I'd make an appointment with a temp agency asap and try to get work through them. It may not be the most glamorous way, but it should get you a job.
Go talk to the campus career center or student employment office. Surely someone on campus must need you for some sort of work. And if worse comes to worse, go talk to the dean of your particular college and ask permission (as stupid as this sounds) to get a job off campus.