Hey, long time gamer, but minecraft noob here. I'm definitely your target audience, as I'm a beginner that's trying to learn all the complexity that is redstone. I've watched dozens of YouTube videos and seen dozens of tutorials and blogs over the last week or so.
I say go for it first of all, there's no such thing as too many resources out there. That being said... some advice as most blogs I've seen are much harder to follow than a video.
1) Write a solid summary telling what the contraption is, and why it is useful to the player (not just what it does, but why do I need it)
2) short summary of the steps you're about to detail so I learn what a particular part of the build actually does
3) Good screen shots! It doesn't necessarily have to be block by block, but a clear picture showing everything done in that step, with a detailed description explaining that screen shot.
Do those things and you should be golden.
