The best place to start is my book: http://personalmba.com/book/
Hope you find it useful!
I do fully intend to get through the Personal MBA stuff eventually; but right now, I'm spending more time with the stuff from Steve Blank, Eric Ries, Ash Maurya, etc. :-)
There lies the rub between many of us and higher education. Making you more employable is supposed to be a side-effect of college, not the end goal. I found that the people who went to school so that they could write down that they did so got exactly what the came for and not much more, while those of us who were there to learn got what we came for. It's an old idea, but true that what you get out of education depends on what you put into it.
From my experience with business people? those with degrees seem to be generally of less skill than those without. (maybe it's just that if you are good and have a business degree you are high enough I don't encounter you? Possible.)
I don't see this correlation in computer science; I have no degree, but I certainly don't think less of people that work alongside me that do have technical degrees. Usually (but not always) it's obvious that they learned something that I missed.
It doesn't need to be an academic course though, gaining the experience through work is good too, and I'm guessing that's what you meant about the "less skill" of graduates - their lack of actual experience.
Unfortunately for someone who didn't really know any accountant or business person until recently, I had no knowledge or confidence of getting my foot in the door, but if I'd studied the subject back in school, I would've been more competent earlier.
I don't see how that's obvious at all.
I mean, I have a reasonable understanding of the creation side of business, and I can do straightforward sales; That side of things is easy enough to learn via trial and error.
Now, obviously, that's not /all/ there is to business, and maybe b-school teaches you about the bits I don't understand. But from a pure "you shall know him by his fruits" perspective, antidotialy, people with MBAs tend to be less successful (at sustainably growing the business... not at getting paid) than people without.
But yeah. as a small business that gives customers products or services in exchange for money? the most valuable thing you can learn is something about the product or the process that creates the product. The most valuable thing a small company has is the owner's labour. I mean, even with the ridiculous $150K/year salary numbers I hear friends throwing around these days... if I was working for someone else? I would have quit yesterday. (well, I would have gotten another job first, but... that has never been difficult for me.)
I'm perhaps most irritated by this because I'm mostly self-taught (in computer science) and university did very little for me. I should've studied business instead, but probably like you suggest, I would've considered that idea incredibly boring at school leaving age.
Boredom aside though, I do wish I'd learned more about business and life in general during school. I'm still trying to learn my way around the system now, but there aren't enough hours in the day. I'm sincerely grateful for the people who've taken the time to explain things to me anyway.