C.E.
Hi J.!
There are lots of ways to get the word out - you can join (or start) mom's groups like this one and ones on Yahoo Groups, you can let MOPS groups know and put an ad in their newsletters (usually for free), put something out there on Craigslist, join or start a Meetup group at Meetup.com
Good luck! What specifically do you do? Tutor? In what? I might be interested in getting some help for my soon to be 2nd grader in reading. Also - I'm a mom to a 20 yr old girl, a 19 yr old boy (and then my little ones 6.5yrs and 4yrs) if you ever want to talk!
C.