Great impressive to see people don't hesitate even investing money just to increase Twitter follower's count...or I can say good approach for Speaker's to build up reader's list, involve user and promote services to them. Overall Creative approach!
Google Search Screenshot for "Twitter"
Twitter Profile of Tammy Camp displaying paid advertisement.
Well I can't shell out money over Google Sponsored Ad's to increase my twitter follower's number. I am quite happy the way people love my tweet's and follow me. If you feel you can follow my tweet's at http://twitter.com/afzee