Denard's distinctive vehicle is a mobile mapping van owned by Tele Atlas, the Dutch firm that, along with Navteq and Google, has spent the better part of a decade building minutely detailed geographic databases used by navigation devices and Web sites.
Tweetsheet (free): This very cool Web tool from Vizify pulls together an instant infographic of your personal Twitter universe: retweet info, geographic impact, best followers, a word cloud of your tweets and more.