Searching for some videos I came across this website. It is called Aikido World Blog. I am sharing it because the articles deal with many of the same ideas I have been thinking about. Here, in no particular order, are a few.
Why do you practice?
The concept of irimi.
Six tips - How to learn a martial art. I especially like this one, there's no magic formula, no easy way, it is study, repetition, and perseverance.
There are lots more worth your time, less about techniques than some sites, but more depth of information on concepts and the philosophy of Aikido.