Area Codes - View area code maps for the US, Canada and the world. Look up cities by area code or vice versa. Use the search field to determine to what area an area code is assigned.

Law Bar Associations - Bar Association sites vary from a few pages and links to extensive sites crammed with information on all things legal and judicial. Bar membership is required to access some libraries, indexes and other research tools, but there is plenty of very useful information on these sites available to the public.

Medical Records & Services - Every state and US territory offers the service of verifying physician certification. Search using name, address or therapy type. Also search to discover if any public action has been taken against a licensed professional, including nurses and various types of doctors. Search through alphabetized links of medical specialties from allergy to urology, and directories for doctors, dentists, hospitals, health plans, medical schools, news/links and clinical trials. Search for medical assistance anywhere by name, city, area code, zip code, specialty, credential type, number and more.

Zip Codes - The subject of 'zip codes' might at first appear to be a relatively simply and straight-forward subject. World post offices (not just the US) use the sequence of numbers and letters to determine the destination of mailings, yes, but zip codes also may the entire world numerically, making it possible to do such things like determine how many zip codes there are within a certain radius, calculate the distance between two points, and easily and accurately determine shipping rates.