I own a webmaster forum with about 250 members, but a lot of them are inactive. Does anyone have some suggestions on how to get the existing members to post more? I am currently holding a monthly contest which I hope will help.
This was explained in other thread check it for further details, mostly you need to give a kick to the users to visit your forum with new entertaining areas unless your forum is a basic need to visit. http://forums.digitalpoint.com/showthread.php?t=1266170
There are three ways to improve activity on a forum: Content Content Content Keep posting, give people something to replay to.
A fun (not something like posting or referring) contest is probably best. Offer a nice prize, like a gift card or a free domain of the winner's choice. Even something like a free premium advertising spot is catchy. You certainly also need to be constantly adding content and interacting with members. Try to promote the forum and attain new members as well.