What is better, a directory or a file name...

What do you guys think is better, a directory or a filename.

for example..

www.example.com/keyword/

or

www.example.com/keyword.php

Eventually, I will be calling the files with queries like

www.example.com/keyword/keyword2.php

or

www.example.com/keyword.php?go=keyword2

What do you think? It will be much more work to do it the first way for me, is it worth it in the long run? Appreciate any responses. 8-)

Use mod_rewrite and your .htaccess file to make--

www.example.com/keyword.php?go=keyword2

--come out as--

www.example.com/keyword2.html

Clean, neat, easy, professional.

(If you don't know how to use mod_rewrite, there is a ton of stuff available for the Googling.)

--
Cordially,
Eric Walker