Hi Mark,
facebook fas a feature. They call it 'page'. İt is to promote persons, brands, etc.
Here is an explanation of facebook pages:
Title
Please see for example Beyonce's facebook page:
Title
Page are dıfferent from personel profiles. They can be run by different user with different administration rights. Like admin, editor etc...
By the way, just saw that stackideas has a page as well:
Title
Regarding the official page/site;
F.e. the check icon in the blue circle is a sign that this page is really administratet by Beyonce (or her stuff).
BR
Alp