Tapeop.com Awesome online magazine with interviews, gear reviews, and more.
Gearslutz.com great for everything gear and audio related resources. They also have a great classifieds section!
Tweakheadz.com Cool site for any audio ethusiast. Filled with a lot of information on home recording.
Vintageking.com Great place to purchase any professional audio equipment. You can buy anything here and be sure it’s up to professional standards.
Periodically updated with links.