blogging and the CRC

The CRC would like to come up with a way to communicate with our users about our activities and services, give tips on research, announce events, and alert our users to issues that impact their studies and their lives. instead of publishing a newsletter each semester, we would like to use a blog or another web 2.0 technology to do this. So, as an experiment, I have set up this blog. However, if only I am able to post here, instead of all of the CRC staff, then, a blog will not be as useful as it might be. Any suggestions on other technologies to explore?