The idea of social lockers is nothing new. Some folks have been using them to get their content more likes, tweets, and pins. You need to have special content to pull this off. You should also adopt a conservative approach with this strategy or your could turn your visitors off. These 7 social locker plugins allow you to hide some of your content and display them only to those who like, tweet, or +1 your posts:
Social Locker for WordPress: this plugin has multiple themes and is compatible with Twitter, Facebook, Google+, and LinkedIn. It has analytics tools too.
Social Content Locker: it has 5 social buttons and supports 4 different services. You get 5 color schemes to get started with. You can use this to lock images, videos, and other types of content.
Pay with a Like: allows your visitors to pay for some of your content using Facebook, Twitter, Google+ or LinkedIn. It creates a social share wall on your website.
Like Gate: allows you to hide certain parts of your articles and reveal them when someone likes your posts. A paid version of this is available too.
Tweet 2 Unlock: useful for those of you who rely mainly on Twitter to drive traffic to your site. The plugin is elegant and allows you to enter any URL for your tweet button. It has a timer feature too.
Google Plus to Download: many webmasters rely on free e-books and reports to gain more leads for their sites. Thanks to this plugin, you get to give your content away in return for some Google+ love.
Facebook Viral Content Locker: this plugin targets those of you who rely on Facebook to generate leads for your site. You can lock certain parts of your content and unlock them when people connect their Facebook account to your app.
As mentioned earlier, you need to be very careful how you approach the idea of adding a social sharing wall for your site. Not everyone will like or appreciate this approach. That’s why you should monitor your visitors and gauge their reaction before getting aggressive with this tactic.