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If I was a school superintendent, I’d require all the teachers in my district to write blog summaries and reflections as a regular part of professional development sessions, whether they involved conference travel or not.

struck a chord with me.

I actually tried starting a PD reflection blog for the teachers in my district. http://cjprofdev.edublogs.org/ It was an interesting, but failed experiment. It took longer to blog the reflection than to fill out the PD “reflection” form. Teachers are busy people, so there needs to be a perceptible benefit to taking the extra time.
Also, the form could be filled out immediately after the workshop, where you had to be at an internet-connected computer to blog it.
I was the only one who posted. Admittedly, I had only talked to other, but did not show them how to do it. It would take some training and convincing to require blogging as required PD reflection.
Of course I was also the only one who had ever blogged before.