HEATKEYS

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.

Map Developers will work with you to design a Google Maps mashup to add to your website. The map could show a single location, or be a custom mashup containing all of the information your user needs.

Musings of a web developer, data journalist, historian, and cat herder from Baltimore.

Ridiculously unrestricted, straightforward and affordable geocoding

Accurate and up-to-date ZIP code databases and programs with ZIP code related information such as area code, county, latitude, longitude, MSA, PMSA, FIPS code, time zone, and place FIPS. ZIP code data available for immediate download. All ZIP code da...

SmartyStreets is the leading mailing list software and address hygiene services provider. We provide on-demand USPS CASS Scrubbing and postal address verification, validation, certification, and standardization services that are CASS-Certified(TM) by...

Make maps from a list of multiple addresses, create a mobile optimized map or locator. Free hosting for your custom interactive map or locator.