This is interesting, apparently there are millions of people googling words during the debate, probably to seek more information or clarification. Here are the words that had the most traffic at different points in the debate: 

- Clean Coal 

- Nuclear

- Maverick

- Voter Retistration

- Meaning of Theocracy

- Windfall Profits Tax

- Variations of Nuclear (nucular vs nuclear, etc.) 

- People googled Article I when Biden referred to the role of the VP, it turns out the responsibilities of the executive branch is in Article II

Its simply incredible how the sharing of knowledge through the internet is changing our political process, this is yet one more implication. The impact can be significant. A better informed public, should make better decisions when selecting their elected representatives.