Hey fellow hacker, the web app is cool. My suggestion a good value add would be writing browser extensions. You can start with Google Chrome since its all HTML + JS. You might want to think about Safari, IE and Firefox later.
This is awesome! However, I'm using IE right now (I'm at work, there's no way I would use IE on purpose) and the button doesn't drag to the bookmark bar. Is the button necessary? Maybe after highlighting, the share dialog just pops up. Maybe it can be enabled/disabled for when users need to highlight for other reasons.<p>Great job tho. I like the idea and I'll be using it when I get home.