Although some people argue that Twitter is one more
distraction in a tech-saturated world, David Cosand says it's been a time-saver
for him. He was writing a grant proposal recently to buy more technology for his
school and realized he needed to learn more about document cameras. "I put a
tweet out asking people which cameras they have found useful. In half an hour, I
got great feedback from all over the country," he says, and he wound up
narrowing down the list to an AVerVision CP300 model.