Because I'm too much of a lazy dolt to update my link directory, here's a list of sites where I downloaded resources used on my F2U images, icons, and other things. Some of these links may be for materials used on previous layouts as well. I also sourced the majority of the items used at the bottom of every new page but sometimes I don't. Plus, I just wanted to make a list anyway because these are all excellent resources.
Source of the flower background on the main page.