How to create custom shortcode for wordpress site
There are many wordpress plugins which using the shortcode. But you easily create custom shortcode for wordpress site. there is no need of external plugin
Admin Panel of Lessbuttons wordpress social sharing plugin
LessButtons automatically display sharing buttons for those social networks, where visitor registered and logged in.
Support automated detection and display buttons for Facebook, Twitter, Google+, Pinterest, LinkedIn, Reddit, VKontakte, Odnoklassniki. 100+ more social networks and bookmark services available to users.
If you have Google Analytics tracking code on pages, it will automatically receive tracking notifications for each visitor registered in social network or share button pressed. It give you know what social media is popular with your visitors.
Magnifier sign on Twitter, Google+ and VK buttons allows your users to find more peoples who share your page.
Here is preview of Social buttons on my site. You can see demo of social buttons on my blog itself. (http://wpapi.com)