Advice on writing
I loved this interview with Michael Grant, author of Gone (I still need to read that series). I found his views on completing writing courses, and reading up on your genre, very refreshing. After all, not many people have time to read all the books.
Advice on editing
The Pelican Book Group blog posted some great advice on using action beats when editing.
I only use physical notebooks and Word, but there are many tools out there for writers to use. Techradar has looked at some of the best free software out there for writers. I particularly like the look of Storybook.