The one with the education infographics from onlineeducation.net

If I recall correctly (and most of the time I do :P) these guys are also behind the other one, the one that strives to show us how social media is affecting our students (Click here)

Total disclosure : I for one, like all the possibilities of online education like not having to attend a far away building everyday (then we avoid polluting a little that day), but I do understand that such isolation would also serve better for college students and not for high school, kids the teens are better served learning to deal with people, one thing that in my country is severely lacking.