Hello there,

Posting on Hacker News is a good start. But I would consider leveraging social networks to help spread the word. Here are a few options:

-You can integrate Facebook Connect or Twitter Signin to get users to link their accounts to their thematchinggame.com profile.

-Once connected, you can post tweets or status updates about their activity.

-You could also ask them to tweet or to like your website whenever they signup.

-You could also create a simple contest for an iPad 2, and users would need to invite the most friends possible to be eligible. Or you could ask them to like or tweet the contest.

Good luck!