Warning: session_start(): open(/var/lib/php5/sess_at3c0g48ugonv66c4r0ckbipv7, O_RDWR) failed: No space left on device (28) in /var/www/clicktotweet.com/www/index.php on line 5 93% of marketers are using social media for business. - @ValaAfshar http://j.mp/1fbLjnE #marketing #SocialMedia