unsplash: freely usable photolibrary, plenty of free images submitted by users to pick from!
filegarden: file upload website, good alternative to catbox.moe if you're wanting a bit more control over your resources
WALLPAPERS:
oopsie doodle's free backgrounds (vintage wrapping papers, tile-able)
paper tiles (found in hillhouse's website!)
THINGS TO SEE
dyke news scotland: free publication about the goings-on of scotland's lesbians. love it!!!