It's a whole lot of pages of useful info that have been collected from members' questions and blogs. Go to the bottom of the page where the letters of the alphabet are. This is the index to GoYpedia - click on "D" for instance and find pages/photos about flowers beginning with D as well as pages on Dogs in Gardens, Dry gardens, Decking - or whatever.
Have a look around and see what you can find and what interests you.