My initial conclusions are that for learning purposes, both types of blogging require some thinking through and some preparation and planning. For audience capturing, videoblogging may help in this regard, but both types will need high quality output, be that written text or engaging on-camera presence. I am coming around to the idea that it actually might be a good idea to mix the two approaches. Having a visual stimulus on the blog i think will spark more initial interest.
Video Editing Technology
Although my initial interest was in using videoblogging to produce content more quickly. I actually became more interested in how to make good use of video editing technology and i have made a start here in this blog. What i can say is that Camtasia is an excellent video editing tool, allowing importing and editing of webcam video, video screencasts, camera video, audio files and image files. With creation and editing also of functions such as zoom and panning, captions, on screen text 'callouts', hyperlinking and an option to include flash based quizzes and surveys there are plenty of tools to be creative with your finalized video output. The bottom line is that working in the camtasia editing environment is very easy even for a teacher that has no previous experience of editing video.
For what you get i think camtasia is very well priced (at last time of checking £134 for educational license), however if you are looking for a free video editor then windows movie maker is also a great free bit of software, that can add a bit of variety and interest to a straightforward talking head webcam.
If you did not know already text based blogging is a fantastic learning tool (see my earlier blogging posts). However whatever blogging method is used, you the blogger need to find a subject worth blogging about and then invest time in using your blogging weapon of choice to engage and interest your audience in what you have to say. This may be i) Developing your writing style ii) Improving your webcam talking head delivery or iii) Understanding visual media delivery to make best use of the great video editing tools that are at your disposal. In short if you are like me you blog to learn, but also blog to offer something of value to the audience. In offering something of value to the audience it pays to improve the many communication skills at your disposal.