Mashable: How to find a buyer or seller's Facebook profile on Marketplace
Despite countless reasons to leave Facebook, there's one feature that keeps me on the site: Facebook Marketplace, a section where you can buy and sell items such as furniture, cars, and vintage lamps.
2 Facebook does not allow you to change the "What's on your mind?" text box, unless of course you're developing an application for use on Facebook.
Learn how to create a Facebook share link without using JavaScript, including tips and solutions for effective sharing.
For my application I need to embed Facebook page in an iframe, here is the html code: