Feed

fb feed - http://stackoverflow.com/questions/1086380/how-does-facebook-gmail-send-the-real-time-notification

node client for socket - http://stackoverflow.com/questions/10703513/node-js-client-for-a-socket-io-server?rq=1

socket lost connection - http://stackoverflow.com/questions/16293520/how-to-detect-that-users-connection-is-lost-or-he-closed-the-browser-window-in

socket disconnect - http://stackoverflow.com/questions/18126677/node-js-socket-io-close-client-connection?rq=1

socket multiple sessions - http://stackoverflow.com/questions/10480891/how-to-detect-multiple-socket-io-connections-from-same-user?rq=1

socket disconnect http://doblydev.blogspot.in/2013/04/recognizing-user-exit-with-socket-io.html

http://stackoverflow.com/questions/9077719/how-can-i-handle-close-event-in-socket-io 

setup socket and express http://www.danielbaulig.de/socket-ioexpress/

SOLR AUTOPUSH

dataImport - http://stackoverflow.com/questions/33472440/is-data-importing-automatic-in-solr?lq=1

mysql auto - http://stackoverflow.com/a/6467091/815929

mongo auto - http://stackoverflow.com/questions/9691316/how-to-listen-for-changes-to-a-mongodb-collection/9692678#9692678

   

MISSCELLANEOUS

dependancy eduction - http://tutorials.jenkov.com/dependency-injection/index.html