====== Sockets ======

  * **http://socketo.me/**
  * **http://reactphp.org/** 
    * https://github.com/reactphp/socket
    * https://github.com/jolicode/php-ar-drone
  * https://code.google.com/p/phpwebsocket/
  * https://github.com/varspool/Wrench
    * https://github.com/lemmingzshadow/php-websocket
  * http://www.websocket.org/
  * https://github.com/RickySu/phpsocket.io
  * http://elephant.io/ *
    * https://github.com/wisembly/elephant.io