CC BY-NC 2.5- The Essential Meta Tags for Social Media (css-tricks.com)
These days, almost every website encourages visitors to share its pages on social media. […] When users choose to share these links, it is tasked to the web developer to make sure that the associated web pages are properly prepared, which is what we’ll look at now. Facebook and Twitter are, by far, the most popular social media platforms, so let’s focus on those two.