Even today "although the server name in a URL is not case-sensitive, the document pathname may be. Since most web servers are run on Unix-based systems and Unix file names are case-sensitive, the document pathname will be case-sensitive, too. Web servers running on Windows machines are not case-sensitive, so the document pathname is not, but since it is impossible to know the operating system of the server you are accessing, always assume that the server has case-sensitive pathnames and take care to get the case correct when typing your URLs." (page 198, Church Musciano and Bill Kennedy, HTML The Definitive Guide, 3rd ed., August,1998, O'Reilly & Associates.)

Therefore, assume all e-mail addresses and URLs are case-sensitive.

However, IN SEARCHING ON MOST SEARCH ENGINES, TWO RULES APPLY:

1. Capital letter stand for capital letters.
2. Small letters stand for BOTH capital letters and small letters.

1. CHURCH (Click on CHURCH to see the search.
2. Church (Click on Church to see the search.
3. church (Click on church to see the search.
4. cHURCH (I left the CAP lock on purpose !) (Click on cHURCH to see the search.

The results were: All CAP for "CHURCH" yielded 371,660 Internet web pages that had at least one "CHURCH" on the web page. Also notice that the underlined heading following 1, 2, 3, etc. are the title to the web page -- SLSC CHURCH Colum. In fact, every listing on this page has "CHURCH" capitalized in the web page title. When the search was with "Church" the count was 4,652,400. With "church" with all small letters yielding 6,077,620. This gets all the churches in AltaVista database index. I always say "to get all the turkeys in the world then spell turkeys with small letters. For the fun one -- "cHURCH" -- 19 pages from two different web sites. I know how it happened !!, because I searched that way once ! !