@ step-by-step oauth implementation guide
=========================================
http://ngiriraj.com/work/facebook-connect-by-using-oauth-in-php/
http://ngiriraj.com/work/yahoo-profile-connect-by-using-oauth-php/
http://ngiriraj.com/work/linkedin-connect-by-using-oauth-in-php/
http://ngiriraj.com/work/google-connect-by-using-oauth-in-php/
http://ngiriraj.com/work/hotmail-connect-by-using-oauth/
http://ngiriraj.com/work/category/social-media/


@demo URLs:
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http://ngiriraj.com/socialMedia/linkedin.php
http://ngiriraj.com/socialMedia/twitter.php
http://ngiriraj.com/socialMedia/google.php
http://ngiriraj.com/socialMedia/yahoo.php
http://ngiriraj.com/socialMedia/msn.php
http://ngiriraj.com/socialMedia/github.php
http://ngiriraj.com/socialMedia/scoopit.php
http://ngiriraj.com/socialMedia/tumblr.php
http://ngiriraj.com/socialMedia/fitbit.php
http://ngiriraj.com/socialMedia/foursquare.php
http://ngiriraj.com/socialMedia/dropbox.php


Download lib/http.php and lib/oauth_client.php from below link:
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http://www.phpclasses.org/package/7700-PHP-Authorize-and-access-APIs-using-OAuth.html