[JavaScript] Facebook, Twitter share url

*Twitter
- http://twitter.com/share


*Facebook
- http://facebook.com/sharer.php

*Facebook with parameter
- var facebook_url = 'http://www.facebook.com/sharer.php?'+
  'u='+encodeURIComponent('http://google.com/?q=bla')+
  '&t='+encodeURIComponent('Some Page Title');



출처 :
http://stackoverflow.com/questions/7584197/sharer-link-with-parameter-in-url