I'll create a Google Docs form to get some votes from certain group of people and I would like to avoid votes from people that aren't on that group.
I would publish my form only for Google users, but since some of them don't have a Google account, I wouldn't like to create one for them only for that purpose...
I thought in a solution like, after pressing "submit" on form, a confirmation e-mail is sent to user to validate its answer.
Any help?
