Okay Steve, you asked for it! There’s probably some others out there but here’s what I came up with. Sort of listed in order of activity but not really.
Online Presence:

Flickr…2,000+ photos
Youtube…30+ videos
CoComment…130+ comments
Delicious…670+ items
SlideShare..5 slideshows
Wikispaces
Odeo
Archive.org
Geocaching.com
OurMedia
Revver…9 videos
MySpace…never really used it.
Twitter…very new

IM Presence:

Skype…dean_shareski
MSN Messenger…rarely used
Google Talk

Blogs:

This one
It’s also syndicated here and here
Digital Learning
Family Blog

Group Blogs

Conversations on Learning
Edtech [...]