The 0MQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialized messaging middleware products. 0MQ sockets provide an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols, and more.
123 Flash Chat Moodle Module adds a chat room with multiple skins and single sign-on to Moodle. It features a social connect feature, profile and avatar integration, video conferencing, membership upgrades, a mobile app, and HTML5 client. Chat users can link to their Facebook, Twitter, Yahoo!, or Google account and update their status on social networks with their activities in chat.