post about using Crocodoc to collaboratively annotate PDFs online. One aspect of Crocodoc that I forgot to mention is that it uses HTML5 which means that it will work on iPads. I was reminded of this aspect today when TechCrunch ran a story announcing Crocodoc's newest features for app developers. Try the personal version of Crocodoc here.
Applications for Education
As I wrote on Sunday, Crocodoc could be very useful for students to use for peer editing activities. In the comments of my Sunday post Maru Busico-Flight shared the idea of using Crocodoc to grade and comment on her students papers then return them online.