You need numbers if you want to run a successful blog or a social media page. People, therefore, are taking advantage of free likes to do that. There are different approaches used to attract the same that needs careful planning and consideration before you start going for the numbers. It is easy to make use of your existing likes to build on more. Let your fans help you to reach out for more as you provide them with a little token or incentive to help you spread out the message to potential free likes.
Some existing followers may just share your message freely because they believe it is worth it but others will only share with a promise to get a gift back. That is when contests, voting, and instant prices come in now. Competitions like tagging friends to come like your post or a particular picture on social media are aimed at bringing them to your page. As the winner takes the prize home, the numbers are retained because no one will find the need to dislike the page again.