Incredibly useful, interesting to see the development of stock photography over the last few years - Getty released the embed feature, Unsplash launched, finda.photo aggregates similar sites.... iPhone cameras and filters enable people to take better photos themselves... Outside of high end photography I'm not sure stock sites as we know them have a future.
Thanks for mentioning FindA.Photo :) It's nice to know it's useful!
Orrrrr, don't use google images for commercial use, ever.
+1 for the name StockBlocker :D
That's the one I actually wanted to see. Google Search engine is far better than stock site search.