.ORG: When an internet user wishes to access an internet site for a non-commercial entity, he usually types “.org” at the end of the desired site’s address name. By typing “.org”, the signal from your computer knows to access the port on the desired internet site’s computer with which to access and receive the site’s content information.
µ: The symbol only looks like a “u”. It is actually pronounced “myou” and is an abbreviation for “micro” (one-millionth). The “µ” is the Greek symbol for the letter “M” - as in the word “micro”.