Richard Johnson, Director of Sustainability at Rice University and blogger at Greening the Campus, put together a great top 10 list of tips on how to get started for new campus sustainability professionals.  

He writes:

A genuine source of optimism at the AASHE conference was that the ranks of the "sustainers" are growing rapidly. When I first joined Rice in December 2004, I estimated that there were about 50-75 campus sustainability professionals in the US. By late 2008, I'm now counting closer to 170, although I did read an article that suggests the number could be over 250. That same article forecasts that over 1,000 schools will employ a sustainability professional by the end of the decade. If we are in fact facing a quadrupling of our ranks by the next AASHE biannual conference in 2010, then it's time to devote some attention to advising our forthcoming new peers on how to get started.
His list of suggestions includes email lists to join, publications to read, and good first projects for new officers.  The post also includes an invitation to submit additional suggestions in the comments.  You can read Richard's list here.