ilo - Premium Twitter analytics
Nimbus Screenshot - Take screenshots and record video from your screen
Tweetastic - Better Twitter analytics, scheduling and more
Evernote Web Clipper - Clip, don't bookmark. Web Clipper is a browser extension that lets you save any web page, article, or image into Evernote. Download now.
Accountanalysis - A tool to evaluate Twitter accounts
ksnip - Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots. - DamirPorobic/ksnip