Social Media and Facebook

Hello, what are your thoughts on those who can most benefit from Facebook?  My thoughts are that Facebook yields so much more personal insight into facts and ideas then many other resources either online or in print.   One can gleam information or ideas from an expert or someone who has a lot of experience in that subject field.  One can simply connect with colleagues to gather information and share ideas for work or for pleasure.  Business people may do the same, which is of course gather information and share ideas.  Marketing is another branch of Facebook too.  With school students, they can try out their newly learned foreign language or even get opinions on different book genres.  Facebook is limitless, especially with the posting of videos and photos.  Who can benefit the most from using Facebook? I say the sky is the limit, what are your thoughts?