I have noticed a tendency in many on-line postings recently for the writer to refer to a company in the plural: "Olympus have released new firmware", or "Fuji now include a lens cap." I think this is a new phenomenon. To me it just sounds wrong. So I checked with several grammatical references and found that most (or all I could find) state that since companies are legal entities, the singular should be used. Thus "Facebook has..." done so-and-so, not "Facebook have...." I think it just plain makes more sense to use singular when referring to a company; on top of that it sounds better. I wonder if sometimes the plural is used because some folks feel it sounds more "educated" - not quite ostentatious, but surely-it-must-be-correct-since-it-sounds-different. Thus the line, "He gave the results to John and I." Companies may be considered collective nouns, and some have stated that in American English, when describing a collective noun (a group of people) one should use the singular, whereas in British English, the plural is used. For example, "The board (of directors) has decided..." vs "The board have decided...." Maybe my well-meaning friends from across the pond (or Down Under), then, are the sources of this cacophony. If so, you are forgiven.