Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Workona - A better way to work in the browser.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Go to Tab - Manage your chrome tabs easily when you're multitasking
Guaana - Connect with scientists & innovators to share knowledge
Toby - Better Than Bookmarks