Increasing traffic to the main webpage and then linking them here, or even starting a private forum on the webpage would help I think. At present people have no reason to use the psas website. A good start would be to make it a little more appealing in the visual department, and also give it some more utility so that people actually have a reason to use it and spread it around. You would also need to find someone dedicated to update it on a regular basis.
A dedicated forum for club trading would be a good start, or even just a list of people who have a certain coral that they frag for others on occasion so people know who to talk to and whats avialiable within the club.
Another idea would be to have someone video tape meetings and then host videos of them on the website for the members who could not attend, or run a torrent tracker if bandwidth is an issue.
There are a lot of little things you can do on a website to make it something people bookmark and visit often. It can also work as enticement to get new members. I am not a member yet, but I figured you would'nt mind the input.