If you're interested in learning about the companies that provide Google, Yahoo, MSN, Mapquest and many others the data for their digital map services, a Newsweek article: It's the Road Now Taken, offers an overview of the two companies that provide most of the data, Navteq and Tele Atlas. You'll also read about the people who drive around updating each companies database.
Thanks to Directions for the tip.
Optimising Digital Marketing Campaigns with Search, Social and Analytics
At SES London (9-11 Feb) you'll get an overview of the latest tools, tips, and tactics in Paid, Owned, Earned, Integrated Media and Business Intelligence to streamline your marketing campaigns in 2015. Register by 31 October to take advantage of Early Bird Rates.