Getting more people signed up

We've all managed to build this community up to a reasonable size now (542 members right now).

That's a great start, but - assuming you're finding this site useful - can I encourage you to invite more, relevant people? Maybe think about putting a badge on your blog or inviting a few people?

If you put a badge on your site and then send me an e-mail, I'll pick 10 people's names out of a hat at the end of January and send them $50 of Amazon vouchers.

Thanks!

- Neil