WikiName 
Your name, usually your first and last name connected without a space.
For example, Tim Berners-Lee's WikiName is 
TimBernersLee.

 Your name is also a potentially valid 
WikiWord when used within a topic. However the home pages of registered users on this site are stored in the 
Main web. 
When you sign your username in a topic, prefix it with 
Main. (including the dot). That is, write 
Main.WikiGuest to link to 
WikiGuest, your personal home page in the Main web.

 Though rarely used in common practice, you can use the special 
%USERSWEB% macro prefix for WikiNames, for example, 
%USERSWEB%.WikiGuest.