Here are places to find information from Google on the 2008 US presidential election, from videos to news stories. Google also combined some of these sources into mashups that contain information from several places at once.Obviously, the election is over, so many of these services have shut down.
This was a collection of Google Maps mashups. You could find maps of electoral college votes, campaign trails, videos, party headquarters, and more.
GAudi, short for Google Audio Indexing, was a Google Labs project that lets you search through videos by analyzing the audio content with speech to text technology. You can search globally or search within a single video. For the election, it was loaded with political videos. The link appears to be broken now, so the tool may have been discontinued as speech to text was made more available within YouTube searches.
There are links to official campaign websites, blog and news stories, pictures, YouTube videos and more. You can add part of this page to your iGoogle page as a Google Gadget. There's also a link to similar information on the Democratic and Republican national conventions.
These are the articles that they've felt were important to share. You can read feeds from one or all of these sources, and the site itself is a feed, so you can use Google Reader or any other feed reader to subscribe to it.
You can view official videos from the candidates and clips from news and television appearances. YouTube isn't just about watching videos. Upload your own video, make comments, or see what other users have contributed.
Videos are organized by candidate and issue, and video responses and text comments are listed below each video, both good and bad. You can also review videos from the two YouTube sponsored debates that were held during the primaries