I think it depends on where your tutoring and what your are tutoring on. In college, you could get a tutor for like $25 or something, but they were grad students and upper classmen. I'd imagine a graduate could get more.
Found this (have no idea what they are all about but it sounded good)
NTA
And this one....(again, no clue if this is local or national)
Tutor Nation
But maybe they will have some resources for you.