slide from tonight's class - when to writepic.twitter.com/6VjgdsUYNs
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I think @harmchop interviewed some experts and tried to figure out what they're actually doing (vs what they think they're doing)
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.