I've seen several popular pages on FB (higher perspective, brain picks, positive world...) and wonder:how much they invest to reach millions of likes? It cannot be only organic, correct? I would like to know if there are techniques or investment strategies to reach these numbers?
Most of those are very good at syndicating content. Because Facebook doesn't do much in terms of copyright infringement, people can take great content from other places and use it for their own pages. If you do that and include a paid strategy behind it, you have the ability to grow your page quickly.