There's growing recognition that there are a wealth of useful tools for ecologists in the social media realm. Jarrett Byrnes just gave a great talk called Taking the ecological conversation online highlighting the usefulness of Twitter, blogging, and crowdfunding (e.g. #SciFund).
Hooray for blogging! My personal interest in blogs has always been the experiences of scientists (the stories behind the science!) and the mentoring that comes out of it, but there's something for everyone.
Here's a link to the slides from Jarrett's talk.