Assumption I assume that you already had created Facebook App and you have AppId for the particular domain. How to add a Facebook share button to your website page Let’s have a look how to add share button to your web page, so that people can share your web content on Facebook. Step - 1: Get a Facebook AppId for your domain. First of all to add share button to your website you must have Facebook AppId for the domain on which you would like to place a button. This is basically to ensure security perspective. If you don’t know how to set up Facebook App please have a look at my blog on same. Step – 2: Add the Facebook JavaScript SDK to you web page. Facebook is providing code to initialize JavaScript SDK. You need to add this code within <body>…</body> tag of your .php/.html/.asp page. I suggest using Asynchronous JavaScript code. Facebook provide two methods as follow Synchronous: Loads in order it appears in your code Asynch...