The Chartered Institute of Public Relations has now published its approved social media guidelines. The advice aims to:
demystify and to raise awareness of the issues, the potential and the pitfalls of social media.
In the published online form, the guidelines look usable and should certainly help public relations practitioners and their clients. They will be revised over time, which is essential when dealing with this fast moving dimension of public relations.
Greenbanana: PR + more 
The rules are very interesting, however, I find the code of conduct interesting, because at times, dealing with Bloggers as a PR person can be a double edged sword as many do not honor embargos and also do not hold themselves to the same code of conduct that general “reporters” do