(CNN) -- "I forgot to vote" won't be a valid excuse for most Americans surfing the Web on Tuesday. That's because internet and social networking companies have created various tools to remind and guide U.S. citizens to voting booths. Google has created Election Center, which most notably has a map that pinpoints the polling place nearest to any address. The search giant has added to its meticulously uncluttered Google.com homepage a note about Tuesday's election and a link to the map. Facebook also employs Google's polling-place widget on its website. The social networking site is where Americans spend most of their time online, according to research firm comScore. U.S. adults who use Facebook will see an alert on their main pages reminding them to vote, a Facebook spokesman said.
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Google created a widget to help people find a polling place near their houses
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Facebook is using that widget and will remind U.S. adults to vote Tuesday with an alert
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Foursquare has created an "I Voted" badge to reward those who engage in civic duties
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"@placeholder is committed to encouraging people who use our service to participate in the democratic process," the statement read.
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For this election, @placeholder, with help from a couple of organizations, has built a Politics page, which is visible to web surfers whether or not they have a Facebook account.
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@placeholder plans to track mobile check-ins and arrange them on a page called I Voted.