High Scalability - High Scalability - Google+ is Built Using Tools You Can Use Too: Closure, Java Servlets, JavaScript, BigTable, Colossus, Quick Turnaround

High Scalability - High Scalability - Google+ is Built Using Tools You Can Use Too: Closure, Java Servlets, JavaScript, BigTable, Colossus, Quick Turnaround: "For Google+'s most innovative feature, video conferencing with Hangouts, GigaOM has a good article on that stack, which is based on Announcing Google+ Hangouts, written by Tech Lead Justin Uberti. Unlike Skype, which runs on a cost effective P2P model, Hangouts is completely hosted by Google. This must cost a staggering amount of money. You are on your own here. Nobody can replace the bandwidth being donated by the Google fairy."