I noticed that you guys have buttons for Digg.com and StumbeUpon, but not for Reddit.
It might not be a bad idea to add a Reddit button too. I made a subreddit dedicated to hammock camping not too long ago (linked in the bottom of my post) and it's already gained over 200 users, many of whom are fans of this forum. This would probably help get you guys some more traffic. I'm not sure if you advertise but Reddit sells ad space starting at $20 or 30 a day too.
Just an idea to chew on.
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