New Old Stock - vintage photos from the public archives free of known copyright restrictions.
Learn Enough Command Line to Be Dangerous by Michael Hartl an introduction to the Unix command line. Brief and really informative.
LinuxJourney.com - now I know where to redirect my #Linux-newbie friends. Even more, I will go through it by myself!
New Old Stock - vintage photos from the public archives free of known copyright restrictions.
Great set of click effects for links and buttons
phpredmin - a Redis PHP GUI. Looks nicer than phpRedisAdmin.
PsySH - a runtime developer console, interactive debugger and REPL for PHP. Looks like the coolest dev tool after xDebug. But could not run debug correctly on basic Vagrant+Apache due to missing $HOME env param.
Flickity - touch enabled and responsive gallery