Nice start! Keep it coming! How about a video on changing uke strings? Especially the ones tied at the bottom without the hole and peg. I haven't had to change strings yet and you're right--High ANXIETY!
There's a video on how to change strings on the UU video page. It works too, I changed mine very successfully using it.
The blog is indeed a great thing. I've often wondered about doing one and now I've seen yours I may just do it.