http://audio.tutsplus.com/

This blog is very awesome.  It shares a lot of knowledge and gives help to music producers.  It answers some pretty common questions as well as specific ones that I might have.  I found many helps tips on this blog; however, it sometimes does not go into much detail depending on the topic.

http://www.logic-cafe.com/Homepage.asp?CategoryID=5

I am a user of Apple Logic(a program for producing music) and this blog is very cool.  It keeps me updated with their latest updates, new instruments, and free demo packages.  It has a lot of information on pretty much anything you need to know about Apple Logic.  They don’t post very often. I wish that they maintained the blog more frequently.