I think your blog entries are original, well-written, informative as far as I can tell, and a clear cut above the bulk of the self-promoting linkjacked blogspam that's posted all the time at Snapzu. Even the fact you're in the comments asking for thoughts and puzzling over downvotes puts you in a class apart from, daresay, most bloggers shopping their work at Snapzu. That you're asking for feedback marks you as special as well.

However, what's working against you has gotta be that you're only ever posting your own stuff. There has long been a 10%-sharing rule, the thrust of which is to make your own work only a part of what you share here. You're far from the only one exclusively posting their own work. Also, that rule may change as Snapzu gets more popular. Regardless, your stuff may be mistaken as commercial — even though it's never seemed that way to me — and that's probably why people are marking it down.

Writing this out, I feel bad for not having upvoted most of it. For encouragement, if nothing else. Except for this last one, you really phoned that one in! ;}