Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Celestia - Real-time 3D visualization of space
Chatlio - When you have a business to run, your average instant messaging software just will not do. You need an internal presence upon which your entire team can collaborate on. Read more about Chatlio.
Pidgins - Transforming customer communications with SMS
LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.
Tiviclick - Tiviclick is a plug-in for websites that enables live, face to face video, voice and text chat between visitors and agents.