I love learning new things, and am currently, in a desultory fashion, learning the basics of successful blogging.
One of the things which strikes me is the application of the 80/20 rule. The first 10 or 20 percent of things you learn on the subject (whether it be adsense, SEO, gaining readers for your valiant new blog) is the most useful, and accounts perhaps for 80 percent of the useful things you will learn on the subject. The next 80 percent, while useful, won’t be hugely, hugely more useful than what you learned in the first few hours you devoted to the subjects.
In other words, a couple of hours study on each of these techologies will be enough to get you a long way in using them profitably.