Let's discuss Growth Hacking Strategies
Here's how Buzzfork was able to launch successfully using #growthhacking
Here is a plugin that locks your content so users have to share your content before they can open it. This is also a growth hack. http://wordpress.org/plugins/social-locker/screenshots/
Here is another good call to action plugin. Lock content and open after they do something for you.
http://codecanyon.net/item/ninja-pop...author=arscode