Instead of a blog, I thought I'd recommend a podcast.
Writing Excuses features three novelists and one webcomic artist. All have experience crafting stories and they have a lot of advice as a result. The blog has a slight SciFi/Fantasy bend, but in general, their advice can be transferred to all forms of writing. If you've never given it a listen, try Mary's Outline, a two-parter where they break down an outline
Mary Robinette Kowal wrote for a middle grade novel.