From some time now Facebook allows site owners to include in pages like button. Today, to compete with Mark Zuckerberg's social network, Twitter has released a follow button to be implemented by all web pages. The owners of sites that implement the feature will allow users to follow a specific account directly from the page where you are, without opening a twitter.
The code to implement the buttons can be copied here. So far there are few options: the network user can choose between a black or white to show or not the counter of followers in the network. You can also choose a language for the button, but Portuguese is not one of them.
Until now the only button that Twitter had released was the tweet button, which allows the publication of a tweet on the page accessed directly from it.
