I can't find your Chatterbank post, but I assume you're looking for typing/word-processing work?
Unis and colleges can be a good option because students usually need to present theses and the like in word-processed, bound format. They often lose marks for poor presentation and can often be hopeless at it, so the work is still there.
A good place to advertise is in the student union of the local colleges and unis. They usually have boards in the shop areas where people can post up private ads on cards. You could extend that to local shops that students frequent too.