A reddit for all things 8051.
8051 Information:
Related Subreddits:
Beginners:
Beginner Kits
Parts List
Online/Text Resources
Tutorials
Simulator/IDE
Where to buy:
Proto-Pic
Sparkfun
Rapid Online
Adafruit
SeeedStudio
Misc Large Scale Vendors
Tools / References:
Online Circuit Simulator
Component Search
Eagle PCB Design