Forum (this) with subscription so that automatic notification is received in my e-mail and I can then access to check out.
For networking, I would follow some Facebook profile with update news, but will maintain the main information in a private network. The same could be done to Twitter or other media profiles. The goal is that you don’t need to access regularly every different network you belong to, but rather receive in your favorite social media updates notifications, and know when you need to get in.
Promote service capabilities, to advertise what can be done maybe through something like newsfeed or newsletter but very short, to create interest in a more every day, easy to follow approach (less scientific).
Currently we are working on a proposal to use LinkedIN as a channel in order to strengthen the SWICCA community. In the previous comments there were some remarks on Facebook and Twitter. Would you like to use these as well for communication and dissemination purposes?