Ever had a site that has gone 'white' after maintenance? I did. I don't make any site without this back-up component (and backup BEFORE you mess-up the lot). I do test back-ups. They never go wrong. Incidentally use it to transfer a site from the development platform to live platform. Ok, you must check some path settings. But hey, this is a back-up component.
I use this extension as a sponsor wall but also to show the company's staff.
All staff members have an individual page where the extension is linked to.
Take a photo instead of a logo and BINGO a fantastic facebookpage.