Visual Marketing is key in Social Media today. Here are a few resources compiled by Martin Brossman of NCSmalBusinessTraining.com, David William of DWPPC.com and Jody Murphy, interPLAYmkt.com
Free with no attribution required photos sites:
morguefile.com
Google Plus Communities & Individuals
https://plus.google.com/+ThomasHawk/posts
Free Resizing Tools
Video Tutorials
Social Platforms
Phone Apps
Quick Tips
(renaming a file)