I’ve used work of the following authors for the demo site:

…and others. Notice, most of these images are replaced by dummy images in the demo content.

Additional resources:

JSColor, Slippry, Isotope, Fancybox, tipsy, imagesLoaded, Selectivizr, minify, oauth, Flag Icons by GoSquared, Entypo pictograms, Font Awesome by Dave Gandy, Koloria Icons Pack by Andy Gongea. Thank you.