HEATKEYS

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

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.

YouTube is a place to discover, watch, upload and share videos.

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

A simple yet modern discussion forum for land surveyors.

United States Zip Codes provides a free zip code map and list of zip codes by state. Find zip codes by address, zip codes by city, or zip codes by state and compare shipping rates for USPS, UPS, and FedEx.

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...

Find latitude and longitude of any known location by clicking it on a map or entering zip codes or addresses. Batch geocode a list of locations. Convert decimal degrees to degrees minutes seconds and vice versa.

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

MrExcel is your one stop for Excel tips and solutions. MrExcel offers help for excel including seminars and other training.

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

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