There's people out there that do this very successfully, certainly a lot better than I do. One of the reasons that I have so much profession respect for Jarrod Lamshed, Will Chamberlain and Joe McClung is there all teachers with blogs that promote the use of video for sharing. Nothing comes close to being able to get a 'feel' for a classroom than being able to view it.
Not so long ago I was asked by another teacher how to create a video for a blog. Now this in itself isn't a major, although I would say that I've taken it for granted somewhat. What really surprised me is that the IT person said that he'd have to tutor him about it for a week or so and didn't have the time. That led to me thinking that I really should explain how I do it as to me its straightforward, and ask Jarrod, Will and Joe to explain how they all go about it.
For my educational site I try and post once a day. Although that's a little difficult at times once you have the students 'humming' its relatively straight forward and video is a huge part of it. I take the opportunity to video as many school events as possible, or things from an educational perspective that I think the (online) audience would find interesting. Its that old cliche but some of the most viewed material that I've produced has been complete accidents. Our most popular language series in 2008 'Learn to Speak Samoan' came about as an accident because I had a charged camera, some free time and a student who didn't speak English. Our Girls Rugby videos which became firm favourites were a result of having footage that we were using for training and drills turned over to a wider audience.
I use a standard video camera without additional microphone (currently its a Canon MV800i) and a tripod. I then use a firewire capable to port the material across to movie maker. I use Photostory to create a five second link to the blog for before and at the end for the credits. I keep the videos no longer than three minutes. When publishing for uploading to blogger I generally don't upload anything bigger than 30 megs. I believe that the limit for files is 55 meg.
I probably should have an individual sound mic, I know that I should use a program a bit more advanced that movie maker. I have used Moviemaker simply because I'm comfortable with it and its straightforward. I know there's better programs out there, but its always been adequate. Now that in New Zealand were into Term Two I have spent last term training a team of students to do all the filming and the editing. This term I look forward to viewing the finished product online and (hopeful) approving it for publication.
What I would encourage to anyone whose running a blog to think about publishing video footage, students really respond well to it (so much more so than written text or static photographs I believe) and it gives your auidence a greater understanding of others. Now there's also the whole idea of broadcasting/streaming live from your classroom, and I lookforward to reading from our experts on how that's done as that's something that's probably straightforward but I know nothing about the logistics of.