What do the initials URL refer to?

Uniform Resource Locator

URLs are the Website Addresses that you use to surf the web. (Uniform Resource Locator)

examples are: http://www.answers.com www.cia.gov and www.google.com

For more information, see the Related Links section below.

URL means Uniform Resource Locater. It is the address that the server connects to. Kinda like a phone number, it's not the name of the person you're calling, but the telephone finds it.The Uniform(unbiased) Resource(address)Locator(finder) helps one in reaching a domain without any favoritism or bias to the various similar sounding names one uses as a.k.a's/aliases due to the clutter existing.