Was I the only one living under a rock that didnt knew that 500px released a publishing plugin for LR4? Quite slow, but amazing plugin!
I was following an online tutorial where they said something about the flickr plugin and i've thought "I hope its in their plans to make one for 500px" and they're at the 4th revision already; so it might had been out for a while.
All that time I was doing it manually...
I am a PC user btw. Just updated my system and its lighting fast on SSD with enough ram. I bought a spyder calibrator for my old monitors but my new ones calibrate by themselves. It was worth it but most quality LCD'S now have the automatic option.