Our IT admin is not in favor of opening Vimeo to students and recently even teachers have had trouble accessing this site from the district computers. What is your district's view of the safety and appropriateness of the Vimeo site? It is blocked? Do you find lots (any) objectionable content?
I can't find content objections in searches (on Vimeo or of other sources) I have been conducting and love using and recommending the site to educators and students, alike.