Here are my favourite writerly ones...
Should you elimiate 'was' from your writing - why some rules are wrong from Anne R Allen
Lou Knight - a crash course on editing a novel
Writers: you might be doing it wrong if... from Chuck Wendig
5 traits of a successful author from Kristen Lamb
10 things no one else will tell you, you should know now from Lee Ann Sontheimer Murphy
There are also some good posts for reader
30 things to tell a book snob from Matt Haig
How to be a better reader from K J Charles