Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
ilo - Premium Twitter analytics
Tweetastic - Better Twitter analytics, scheduling and more
Front Twitter Inbox - Team inbox for Twitter
ClockTweets - Schedule, analyze, and stalk challengers on Twitter
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.