What about putting up an advertisement on the bulletin board at your church (or any church for that matter), your local community center, boys and girls club center, college campus (probably student union or career counseling center).

Since regular classes are starting up again in September, I am thinking that there are going to be students who have taken on too much and cannot complete all their typing on time, professors who think they are authors in the making wanting someone to do research work for them and maybe even some manuscript typing.