Education, knowledge sharing, and creation are all parts of my daily diet. I enjoy reading about what other developers say and so should you! Exercising the knowledge sharing, here is my development RSS bundle.
http://www.google.com/reader/bundle/user/04345256806204706511/bundle/Development
Some of my favorites
High Scalability - http://highscalability.com/
Reliably Broken - http://reliablybroken.com/b/
B-list - http://www.b-list.org/
Signal vs. Noise - http://37signals.com/svn/posts
Armin Ronacher - http://lucumr.pocoo.org/
Please feel free to leave comments about your favorite development feeds.
Agreed.