Weird little factoid from the cognitive behavior folks -- action comes first, then motivation. So it's impossible to be excited about something that you have not spent some time with. And the more time you spend, the more likely you'll feel excited by it. People think it's the other way around, that you feel motivated and then go do stuff, but it's not.

So everything you've ever gotten excited about started off with you not being very interested at all, but giving something a shot, whether it was a book, a lecture, a website, or so forth.