Hi everyone:
I'm going to move to Leuven (near Brussels) within the next month or so.
I guess I'm getting a little concerned because I haven't turned up much in my online searches that relates to socializing. I plan to learn Dutch as soon as possible, but I'd love to meet some English-speakers.
Leuven (where I'll live) is a student town and I'm a single woman in my thirties, so I'd probably be a little out of place hanging out at the local bars. Does anyone have any ideas as to how to meet people? Does anyone know whether there are many English-speakers in that area?
I'm not picky about my activities, although it would be nice to meet some people who are into hiking, cooking, and maybe taking dancing lessons.
Thanks a lot for any help!

Perhaps you could look for a club in your area. My wife joined a ladies group and it really helped her to settle in.

Join BCT, there are quite a few members in Leuven. You will find much of the English speaking population in Leuven does not have children, so this is a way of meeting those WITH children who speak English.
Go and look on mumsnet too, it's a UK based forum with quite a few members in Belgium and Netherlands who have formed an email group and FB group.

That is just what I need. thanks for the information.

There plenty of clubs listed here to join:

http://brussels.angloinfo.com/af/4/brussels-community-life-brussels.html

Thank you all very much! This is useful stuff. Stockeler, sorry to be dense, but what is BCT? I tried googling it, but no luck. Oscar, the links are very helpful.

Brussels Childbirth Trust which also covers areas in the rest of Belgium. There is a local group for Leuven too.You can join with an overseas address, then change to a Belgian address once you have arrived.
http://www.bctbelgium.org/