A) Ignore them. B) Always accept invitations to become part of someone's online network. C) No idea what LinkedIn is. D) Always agree to be connected if I know the person. E) I always accept until I start getting messages from LinkedIn about confirming my email address, et cetera. F) They are the only invitations I receive anymore. G) I usually accept and then hope the stranger to whom I am now connected will not turn out to be a scam artist or pedophile. H) I accept because I find those occasional "Wonderful news about me" updates amusing. I) Other.