What do the Member Descriptions mean?

When does a new member become a full member

[Brougham]

I'm sure this must have been asked before - However I've searched and can't find.

What do all the member descriptions alongside each post mean. Many are self explanitory but when, for example, does a new member become a full member? - is a full member someone who subscribes? Is there a list somewhere? Many thanks.

[DaveN]

[webmasterworld.com...]

DaveN

[kevinpate]

<edited cause Dave beat me to it>