Workona - A better way to work in the browser.

Sensive - Design collaboration for everyone

OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.

Vabotu - More than slack. More than Trello. FREE.

Session Buddy - Manage Your Browser Sessions

Attentiv - Simple collaboration with upvotes, polls and anonymity