I recently had a conversation with a museum educator about how twitter can be used to engage audiences. We were speaking specifically about using twitter hashtags in an art history lecture-based course she runs (If you want to know more about using twitter this way read Tweeting for Class: Using Social Media to Enable Student Co-Construction of Lectures). This educator told me that she thought what I was proposing was very exciting but that she doubted any of her students had twitter accounts because of the demographic – she said most were over 40. She had a point. Why use something if the audience doesn’t? What is the point of investing time in a tool that won’t reach people? This led me to wonder if this is true only for her course or is it also the case for all visitors to the museum she works in?