Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Butter - Butter is a newly launched chatting application that focuses more on the privacy of its users.
DISQUS - Disqus is a global comment system that improves discussion on websites and connects conversations across the web.
Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
IntenseDebate - IntenseDebate's comment system enhances and encourages conversation on your blog or website.
Vectera - Vectera creates powerful video conference rooms for effective conversations.