Chrome: There are buttons and bookmarks you can click to share
links, images, and videos, but the Cortex extension makes them
seem so slow. Click and hold for half a second, and you can
share to Twitter, Facebook, Tumblr, or Instapaper.  Video
courtesy of Good Morning Geek.  You have to set up your sharing
networks in the settings for Cortex, but after that, it's really
a single click to send neat stuff out to your social networks.
You do get to choose specific Facebook friends to send to, if
you'd like, and you can type out a pretext for your Twitter or
Tumblr entries. Instapaper just stashes away the link for
reading in your queue.  Cortex Makes Sharing Pages, Images, and
Videos from Chrome a Two-Second ProcessS  Does it bump up
against your other click-and-hold routines? Maybe, sometimes.
Having it installed for an hour, I discovered that when clicking
to select text, or drag images or links to the desktop, I
usually move faster than the half-second delay that activates
Cortex. If you're the same way, Cort