SigVault is a graphics forum which brings in money all the time, Simply because of the RSS feeds and HIGH ammounts of unique visitors it's great. We use other websites to gain related traffic such as P2l and Good-Tutorials.

To get on do a simple google search! - Sig Vault - Photoshop Signature Tutorials, Resources, Articles and Forums!
We also try to get give money to those who join in with the community and help out.
( Currently a $300 contest for posters over 50 posts and reffers ) we also make graphics for people needing web developers FOR FREE.
We just like to help out which gets us loads of visitors but we need more to make the site bigger.

Everything is unique, scripting/coding and designs. Had an offer of $3500 but declined because I want to develop the site some more.