The neighborhood boundary data provider used by Google, Twitter, EveryBlock, CitySearch and other companies has expanded to include top cities in South America, Middle East, Africa and Asia. Norwich, Vermont based Maponics says it now also offers deeper coverage for leading US and Canadian markets, with new neighborhoods in 100 cities.

Maponics says it is the first service to provide neighborhood boundaries on every populated continent on earth.

The company uses a combination of proprietary algorithmic and manual methods to determine where a neighborhood begins and ends; boundaries are updated quarterly. The data becomes most exciting when it's cross-referenced with other data sets. Twitter users, for example, will now be able to geotag and view Tweets by neighborhood in countries all over the world.

If you're interested in learning more about Maponics, its sector and its relationship with Twitter, check out the excellent podcast interview DirectionsMag did with CEO Darrin Clement two weeks ago.