I am new to wikipedia and I have notice that all article can be joined by an url like : http://*.wikipedia.org/wiki/words_in_the_subject_of_the_page
I suppose this choice better than http://*.wikipedia.org/wiki/article.php?id=12343234234 was to have easier url and better indexed urls However I am surprised, the choice of "_" ( underscore ) in the url is not as good as "-" (dash) or even "." ( dot ) in the url
could the developer rewrite the url function ? this would lead to much more traffic comming from google
see that : http://www.markcarey.com/googleguy-says/archives/ \ underscores-are-not-word-seperators-in-google.html
I have tested it and that's true !