I should have pointed this out before, but I wasn't blogging at the start of the month. Herb Sutter has a new column at DDJ on, of course, concurrency. In his first outing, he talks about all the different words and concepts that show up in a concurrency conversation, and presents an organization of those concepts that can give you a framework for deciding what you're going to do about the future.
Words like blocking, coupling, background, asynchronous, responsive, isolated, scalability, threads, locks, race, mutable shared objects, transactions, and so on are actually applicable to different parts of the concurrency space. If you try to think about all of it at once, it's too hard. And make no mistake, concurrency is hard today. Anything that makes it easier is welcome, and in this case it's rearranging your head a bit.