HEATKEYS

Free online searches and ZIP code database downloads, with zip codes and latitude and longitude for performing distance calculations. Includes full documentation.

For data quality management tools, mailing software, consumer and residential mailing lists, address verification, and NCOA services, visit MelissaData.com, a leading source of cost effective, direct marketing database solutions.

SitePoint.com - With a vast variety of web design tutorials and articles coupled with a vibrant and well informed community, SitePoint the natural place to go to grow your online business

Consulting company specializing in SOA, web services and web application development. Zip Codes service - zip code and office locator service

MapQuest Developer Network welcome page for guest users. Get all the information you need and sign up for the MapQuest Platform.

HTMList.com is a web development, design and code blog run by web development firm Synapse Studios. We

ProgrammableWeb.com keeps you up to date with web mashups and APIs: what

ZIP Code Database list & Demographics - ZIP Codes by City with Boundary Data - Free ZIP Code Finder - or Download the Data - Maps, Zip Codes, Area Codes, Household Income, Current Population, Multi County Data, Postal codes, MSA codes, CBSA codes...

Commercial ZIP code database software - Rated #1 - with area code, county, latitude, longitude, MSA, PMSA, FIPS code, and timezone. Updated monthly.