Possible Duplicate:
Good Practice for Formatting SEO-Friendly URLs?
I'm looking into seo-ing my urls and i was wording which of these link structures was better to use:
1) www.mydomain.com/contact-john-smith/index.html
-or-
2) www.mydomain.com/contact-john-smith/contact.html
-or-
3) www.mydomain.com/contact-john-smith.html
I realize they're all basically the same but i was wondering if any of those permutations had an advantage over the others.