I think there's a fine line between too short and too long, and that line is partly dependent on your general audience. Are most of us following you because we like in depth, at length analysis, like your last blog post (which I just read), or are we following you because you picked us up via your lunch photos? Does that make sense? Folks who said "oh cool sandwich, I'm following this dude" likely aren't going to settle down to your explanation of patrons and creatives :)))

With that said--one thing I like, when authors serialize longer articles, is that I have 2-5-10-however many times more opportunities to spot it in the first place. I've come across some stories for the first time on the fourth or fifth installment...one was on the 11th installment! If that author had posted the entire thing in one article I'd have never found it.

Going back to "who's your audience?" I'd have broken your long post into 2-3 sections vs 5 or more. I personally find (most) very short installments annoying, but that's because I read very quickly and like to sink my mind into something for at least a couple minutes. Speaking of reading, I got on the computer in the first place to download that file... ;)