Any time someone speaks about a group as a whole, there’s a risk of stereotyping.
I would be nervous if someone tried to unite all blogging teachers to a particular cause. Heck, I’ve learned from the open source community that even supporters of the open source movement have vastly different philosophies and motives.
The OLPC initiative is a prime example. Some edubloggers have embraced it for reasons very different from the reasons some open source people support it, which is also very different from why some Python fans support it (the OS was written in Python). I happen to be involved with all three of those communities and I’m somewhat indifferent about OLPC, as the upcoming release of the Eee PC is looking even better (to me).