Here is a presentation on blogging and humanitarian action (pdf 2 MB) that I presented to Communicators from European Red Cross Societies. 

Some additional resources on this subject:

Guide to social media & communications (pdf)

Some sites/blogs I mentioned on communications:

blog search engines:
http://www.technorati.com
http://www.icerocket.com

Technorati top 100 blogs:
http://www.technorati.com/pop/blogs/

CNET top 100 blogs:
http://news.com.com/2310-10784_3-0.html

PR & Communication blogs:
http://blog.basturea.com/archives/2006/10/22/pr-blogs-june-october-2006/

 Shel Holtz (PR & technology):
http://blog.holtz.com/

Richard Edeleman’s blog:
http://www.edelman.com/speak_up/blog/

Loic le Meur (source of some quotes/ideas of my presentation):
http://www.loiclemeur.com/ 

And the cartoons in my presentation are from gapingvoid who even inspired my own above sketch.

Glenn