World Names Profiler is a pretty amazing Flash tool, that allows you to see where other people with your last name are distributed across the world, in frequency per million, right down to the city and regional level. Fun to pair with the NameVoyager.
posted by dgaicun on Sep 10, 2008 - 93 comments

Looking to rent or buy? You can check out the schools and inspect the foundation all you want, but only Rotten Neighbor cares to warn you about your potential community. [more inside]
posted by Terminal Verbosity on Oct 31, 2007 - 52 comments

Trulia Hindsight merges real estate data showing the year properties were built with animated maps (US Only). Search for your town by name; here's mine.
posted by oneirodynia on May 29, 2007 - 10 comments

Maps
Looking for Maps? Please click on the country of interest.
• Australia
• Canada
• France
• Ireland
• New Zealand
• United Kingdom
• United States

Found while searching for this thread.
posted by fenriq on Jan 12, 2005 - 23 comments

Think you're well travelled? Make a map of all the countries you have been to. Here's my non-impressive offering.
posted by Orange Goblin on Jan 25, 2004 - 53 comments

History Wired is the new interactive web project from the Smithsonian's National Museum of American History, that lets you browse the various collections by topic, by timeline, or both. It's based on the SmartMoney "Map of the Market".
posted by JParker on Aug 22, 2001 - 5 comments