As of today, moodboard is closing its microstock activities:

"moodboard will be suspending all uploads to its microstock collection from 15th October 2010 (15/10/2010) to focus our efforts on our Premium content collections."

see also http://www.moodboard.com/photographers/mymoodboard.htm

edit: changed title

thanks for the link, i hadn't seen that yet.  I liked their style and site but never uploaded to them myself. 

Given that they're now offering their stuff on iStock via the Agency Collection, perhaps they figured that was enough microstock for them?