Right now, I mainly see these types of posts from bloggers who write about technology, communications, and fundraising in the nonprofit sector.
Here are some blogs that illustrate this:
- Beth's Blog
- Getting Attention
- Nonprofit Communications
- Katya's Non-Profit Marketing Blog
- Wild Apricot Blog
- Donor Power Blog
There are also some technology companies who work with nonprofits who write entries about how to use their product(s).
I haven't heard of any organizations using blogs for training, but I hope to see this in the future.