This is wildly inefficient to the point of being untenable, given that the average number of friends per user is measured in the hundreds, and the number of concurrent users during peak site usage is on the order of several millions.

Surfacing connected users' idleness greatly enhances the chat user experience but further compounds the problem of keeping presence information up-to-date.

Email is still the best lead nurturing channel out there. An auto-message like “Hey, can we help you with anything?

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Neither you or your friends have to download anything.

To start using Face Flow, you only need to sign up and add people into your contact list.

This allows you to mix videos and add footage captured on a secondary source, allowing you to create professional video transitions. Download the Many Cam Mobile app and live stream everything around you to all of your favorite platforms! Stream directly from your i OS or Android device to the Many Cam Desktop application!

Independa is simply a SMART TV designed specifically for your aging loved ones.

With Independa’s easy-to-use video chat feature, you can “visit” with Mom and Dad anytime.

Stop in to say hello, or have them virtually attend weddings, graduations, ball games and other family events. Staying connected and in touch with loved ones ensures that seniors don’t feel lonely or isolated.

Unlike a three-guys-in-a-garage startup, we don't have the luxury of scaling out infrastructure to keep pace with user growth; when your feature's userbase will go from 0 to 70 million practically overnight, scalability has to be baked in from the start.

The project I'm currently working on, Facebook Chat, offered a nice set of software engineering challenges: The most resource-intensive operation performed in a chat system is not sending messages.

Chat with your website visitors in real time to answer questions and alleviate concerns more easily, building relationships with your visitors and helping them become customers.