if you have a particular focus as opposed to more generally wanting to meet "anarchists," it is a little easier to zero in. A couple ideas that have only marginally worked for me personally:
1. Start a study group. Pick something as an initial reading that is easily available and digestible, but not so general that you end up with a group that doesn't address your interests. If there is a local anarchist or indymedia site, post it there and see what happens. Bob Black's Abolition of Work is a pretty effective reading for something of this sort.
2. Organize or help organize an event like a book fair or conference. That will give you a chance to be in touch with folks from all over, and if you are involved, you can (hopefully) have some influence on the nature of the event.
ps- I accidentally made this a comment first, I think I fixed it, but y'know sometimes me and the technologies don't see eye to eye on such things.