Note: The original message posted here has been removed and updated with a new message at the request of factle.net - the prior message was based on information contained within an email that was not edited accordingly prior to distribution... Factle is a company out of Berkeley California.
Factle Maps produces high quality neighborhood maps. From members of the team that won the 2006 MapInfo Meridian Award, we have put together a comprehensive dataset of neighborhood boundaries for all U.S. cities with populations of 150,000 and greater, as well as their demographic data. As leading experts on neighborhood mapping, we are constantly improving our datasets, continually mapping out neighborhoods for most U.S. cities with the goal to expand our neighborhood collection to other nations.
Until July 28, 2007, Factle Maps will be offering GISUser users neighborhood data at a reduced price that is often substantially lower than comparable datasets. This license comes with names and boundaries for over 11,000 neighborhoods and sub-neighborhoods, that includes elements of the dataset used by HomeGain and Trulia. The reason for this offer is that after this month, the rights -- to the original neighborhood data that we helped create – reverts to another company. As a result, we will lose our license to sell this specific dataset directly and we want to ensure that everyone has the opportunity to purchase our data at a reasonable price. We typically sell our neighborhood data at 50% of what others have been charging and we do not require an annual licensing fee. You also have the option of upgrading your purchase to include corresponding demographic data to as many as 500 different parameters. Your neighborhood purchase will be credited toward future Factle dataset purchases. see more at http://www.factle.net/
Note: Since the time of this original post, Maponics (www.maponics.com ) has sued Factle Maps over copyright infringement in federal court (see http://dockets.justia.com/docket/court-candce/case_no-3:2007cv05777/case_id-197808/ ). Maponics is the legitimate owner of this data – please contact Maponics at 800-762-5158 for more information on licensing neighborhood boundaries.