I payed for my first month over at International Chess School. They have a 13-month course which looks interesting. Each month you get new study material which includes theory, annotated games, and various tests with annotated solutions.
The first nine months the focus is on developing basic positional understanding. The final four months are almost exclusively focused on calculation/analysis (see schedule below).
If you are interested in doing this course with me, then come on over and join the International Chess School Forum. I realize it will likely just be me there posting my thoughts/analysis of the different articles, problems, and such in the forum pages. It took me way too long to organize the forum categories and such. Egads.
For those thinking of becoming chess bloggers, ICS would be a great vehicle for starting a blog: track your progress through ICS on your blog (Chess? has already been doing this and pretty much inspired this new project).
Note the forum I created is brand new, and I'm just getting the hang of how to administer the thing. I plan to start a new month every thirty days, so right now only the material from the first month has a subforum devoted to it.
Here is their study plan:
Month//Subject
1//Think Like a Strong Player
2//Watch the 2 Centers
3-4//Master the Piece Play
5-6//Master the Pawn Play
7-8//Pawn Structures Explained
9//Advanced Fighting Strategies
10-13//The Art of a Master: Analysis
The course is not cheap (it's $24/month). That's the major limitation.
Note the material isn't super polished, and the language is sort of stilted and strange (in that characteristically Eastern European way). You can get free sample material from the first month here. So far, I can understand what they are saying and I'm happy with most of the material.