Cathy,

I’m a little biased… this is the culmination of five years of trying to make community sites. So, yes, i think it would be perfect 🙂

It addresses several issues – workflow, evaporation of content in a traditional blog, and the structure difficulties in a wiki.

workflow – blog(photo text or others) feed integration with tagging among other things

Joan,
Wikis tend to spiral desperately out of control on large builds. The intent of this is the impose structure that doesn’t rely on very well trained or very committed users.