Welcome aboard, Chickenloving? What do you wish to know? BYC is basically a collection of poultry obsessed people passionate about all types of fowl. There are forums for various breeds covering every topic germane to the owner. People are friendly and helpful on BYC. There are also lots of fun diversions as well. I advise just to surf around the various forums - you'll pick it up in no time! Good luck to you!
There's some basic info and need-to-know in the Frequently Asked Questions section and, like redsoxs said, everything else "chicken"! The BYC Website & Forum Feedback & Announcements also has some discussions on things going on onsite as well as links to things like "How to upload pics" etc. Have a browse and if you need help, shout.