There are many other blogs, websites that speak to engineering leadership.
Robin P. introduced me to this list of managing and leading maintain by Lauri Apple
This article has great advice on how managers can help facilitate long term career planning.
Edmond Lau has written a book, a blog with the same name and has given many talks on the subject of being an effective engineer
Office Hours With Spencer Rascoff – link
You Can’t Be a Great Manager If You’re Not a Good Coach