I like the idea , but using Facebook is probably what will make this idea fail.
There is no active Bitcoin pages in Facebook , not even one as far as I know . It would be better If you buy "whybitcoin.info" or "whybitcoin.net" domains (they are available : https://www.godaddy.com/domains/searchresults.aspx?checkAvail=1&tmskey=&domainToCheck=whybitcoin.info )  and make a simple website layout or use Jekyll instead.