Free Photography
Unsplash - http://unsplash.com/
Picjumbo - http://picjumbo.com/
Pixabay - http://pixabay.com/
Free PSDs
Freebiesbug - http://freebiesbug.com/
UIspace - http://uispace.net/
365psd - http://365psd.com/
Freeble - http://fribbble.com/
Pixelbuddha - http://pixelbuddha.net/
Free Fonts
Font Fabric - http://fontfabric.com/
Font Squirrel - http://www.fontsquirrel.com/
Google Fonts - http://www.google.com/fonts
Brushes
By Nari - http://n-a-r-i.devia...v/54682926&qo=1
By Spoonfish - http://spoonfishlee..../54682926&qo=11
Photoshop Styles
By Xiox - http://xiox231.devia...s/23972794&qo=4
By Ashung - http://www.deviantar...-no-1-100869683
Icons
Cat Icons - http://iconka.com/cat-power/
Flaticons - http://www.flaticon.com/
Batch - http://adamwhitcroft.com/batch/
By Ashung - http://ashung.devian...-icon-285203817
Others
Neopet CSS Guide - http://www.neopets.com/~Kaikuto
Adding more to this list. Fill free to give me some suggestions!