Perhaps we should take a moment and remember that Grammar can be fun (or so they tried to convince us between Saturday morning cartoons) (http://m.youtube.com/watch?v=NkuuZEey_bs)
Writing can be fun, grammar is just one constraint we leverage during writing, and easily bent to meet primeval rhythm requirements. Writing is like composing music, it is written conversation that flows as if you were talking through the paper, with additional constraints to match the medium.
The best way to become good at writing is to do it a lot and receive lots of critique. Style and grammar guides aren't very useful.
If we are talking about technical blog style writing, only a few people write well at all, even out of those that have actual readers; in academic writing, it is even more depressing. Better to develop a critical eye that can recognize good and bad writing.
