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ames Gates, a recently retired computer science teacher, thinks simple ignorance lies behind many school districts' decisions to block access to social media sites. (...) he notes most school districts in his area of south central Pennsylvania block all blogs. (...). Other administrators may point to the potential for inappropriate contact between educators and students. "Some teachers can take 50 kids over to Europe for 10 days, but they can't [communicate with students through social networks]. It drives me crazy."

Adding an alternative accessible version just for blind people is discriminatory. According to accessibility guidelines - and common sense - alternative access for people with disabilities should only be used when there is no other way to make web content accessible. Besides, access to the text version would also simplify life for scholars - and for people using portable devices with a small screen: text can be resized far better than a puzzle of images with fixed width and height