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.

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

Online Reverse Lookup Directory contains list of useful websites for reverse lookup services listed under their respective relevant categories.

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

A simple yet modern discussion forum for land surveyors.

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...

CSGNetwork Free Information. Calculators, Converters, Glossary, Open Source Code... find something. Most pages require JavaScript.

Professional search tool to find and investigate people and businesses, research phone numbers and addresses

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

powerful database management tool allows people to research information to quickly mail letters and packages throughout the USA