Twitter
The Twitter account is making somewhat of a comeback, its main purpose is news and other misc info regarding Mac Garden. If something occurs, it's the first place you should look as it's much faster and easier to update than the infosite.

Macintosh Garden @ Twitter

Information Website
Unlike the Twitter account, this site can handle longer entries, should it be required. It also contains a FAQ over the most common issues as well as contact information, should it be required.

Macintosh Garden Infosite

And on a final note
It would be good to bookmark either or both, you know - just in case.