Digital mapping only begins with the roads

You can pull up satellite and aerial images, discover neighborhood jazz clubs and check the latest traffic conditions. You can even get some rail schedules and, hopefully one day, tips on foot and bike trails through parks.

&to=http://english.pravda.ru/mailbox/22/101/399/16683_patriot.html' target=_blank>Digital maps produce so much more than driving directions these days.

And as features get added, mapping companies are having to build better technologies and find better sources of data _ including their own users.