As of Friday,the upstart photo-sharing community is the third most popular social network behind Facebook and Twitter, according to Internet statistician Experian.

Your Facebook cover photo can easily be changed on your computer or mobile device. You can select photos from various channels.

You can save your own pin to a Pinterest board by using the plus "+" sign in the mobile app or webpage.

Facebook adds cover photo previews, reminds you to post more Hovering over someone’s username in your News Feed now reveals their cover photo (and, Facebook hopes, encourages you to interact).

Get ready for Alabama's 2015 season and show your spirit with a free Facebook cover photo.

Keep in mind that when you unlock the Cover Feed lock screen, you'll still need to enter your security PIN, pattern, password, etc., if you've enabled a secure lock screen.