Share any annotation easily using the Share button at the bottom right.
You can then post directly to social networks like Twitter, Facebook, and Google+, send an email, or copy the special link to share in other social networks. Anyone that clicks on that special link will open the page you annotated and your annotation, even if they are not yet a Hypothesis user.
For example: sharing to Twitter will open a window for a new tweet that already includes the special Hypothesis link to your annotation (and lets you log in to Twitter if needed). There you can add more to your tweet and post to your followers.