Stumbled across this today as my co-worker and I were watching a Google Zombie challenge-- and it looks promising for easy sharing of URLs. ShoutKey was created by someone that wanted to quickly share a link to others collaborating in small groups rather than trying to get an email, or write out the long URL--ShoutKey gives you a QR code or a common word as a hyperlink to share with a set expiration time. Works pretty well. I could see the benefit of using it with students collaborating and needing to quickly share a cool find.
I work with teachers and students as a Digital Media Specialist for the Pearland ISD Curriculum Department. My goal is to share innovative and useful information for other educators, as well as catalog my personal finds along the way!