I went through these posts a few days ago. Your goal seems slightly inconsistent, though. At times, it seems that you are aiming at complete beginners, and at other times it seems like you're aiming at more sophisticated players.
-- You jump into fairly complicated semeai's and tsumego before introducing basic concepts that beginners won't know. (What concepts? Maybe other people will think I'm being stupid, but I would start with atari, extending from atari, nets, ladders, pushing, hane'ing, cutting, jumping, eyes, and some basic ideas about how to use stones efficiently in different parts of the board.)
-- You tend to give a problem that requires you to know a tesuji, and then introduce the tesuji in the solution to the problem. This is brutal on beginners! They'll either develop a habit of looking directly at the solutions without bothering to try the problem, or they'll get very frustrated.
-- Eight lessons on joseki for beginners seems like a lot. The ideas are good - I like that you're focusing on guiding ideas rather than encouraging them to memorize branches - but 12 fundamentals is a lot for a beginner to remember and internalize. Since many (all?) of the fundamentals are actually go fundamentals rather than joseki fundamentals, it might makes sense to introduce them one at a time, and trust that the people reading the lessons will apply them in the corner.
In your solutions to the tsumego you do a really great job going over all the different variations, even ones that stronger players will think are silly; I think this is useful for beginners. The material in all the posts seems pretty good, but I prefer the crisp, focused tone in the earlier lessons to the more garrulous tone in the new posts.
This is just my impression!

I hope these suggestions don't sound harsh - I'm sure my ideas about how beginners should learn go have more to do with how I learned go than with the objective order of things.