Here are just some links to some excellent Gargoyles sites out there.
Gargoyles-fans.org - Your one stop for EVERYTHING. The END.
Station 8 - Among other things, it features an "Ask Greg" section, where you get to converse with one of the creators of Gargoyles!
Gargoyles News Central - Self-explanatory.
Disney Animation Archive - Provides lots of screen caps, model sheets, and resource links to not only Gargoyles, but all sorts of Disney productions.