Twitter also has launched a service today that enables users to send a private Direct Message, or DM, to Twitter's @gov account to get information about their polling place, the candidates and ballot questions, along with information about state election rules and absentee voting.
Facebook and Google also played roles in the presidential debates between Democrat Hillary Clinton and Republican Donald Trump.
The Commission on Presidential Debates, which organized the three presidential debates, in September used information from Facebook and Google on what people were searching for and saying about the election, to help them put together questions for the candidates.
Facebook also was on-site during the debates to help people live stream the events using Facebook Live.
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