[_delirium]

Also, Twitter is disproportionately popular among mobile users, many of whom don't even access it via a webbrowser. I'm not sure it's exactly the same as tech-savviness, either; I'll see if I can look it up, but I remember reading that Twitter is particularly popular among non-traditional internet users, especially African-Americans, who have a mobile device but rarely use a laptop or desktop computer. Facebook, by contrast, is mainly a website.