Erin asks: How do I post a video to my blog?

Well, Erin, that question has a pretty long answer. I'm going to refer you to someone else who has already written a nice tutorial on how to video blog (complete with instructional videos). The trickiest part about it is finding some place to host your video file (without spending a lot of money) but the tutorial points you to a place that will host media files for free!

Sources:
http://www.freevlog.org/
http://www.ourmedia.org/