In web page file names - does it matter if i use hyphen or underscore?

Does it matter if I use hypen(-) or underscore(_) in naming my pages?

This is a question that I though I had settled already (i.e. that it doesnt matter) but I read a posting on another forum (http://www.v7n.com/forums/seo-forum/7773-do-yourself-seo.html) that has thrown me.


Hyphen, underscore or either?

 

I always use hyphen, i believe its the most recommended.

 

an underscore is generally ignored by a search engine, neither does anyone searching uses underscore (they prefer only hyphens) unless and until webmasters (like us) who will search for specific terms.

Always use hyphens..

 

I always use hyphens as they are considered as word separators by most of the serach engines.

 

I also use hyphens. Also, its a bit difficult to put an underscore while youre typing. So most people prefer using hyphens. Plus, URLs with hyphens are more readable than URLs with underscores.

 

Hey Everybody - u guys gave me a new NEWS . I only used underscores - well im gonna track this thread to the last - let me study this well. Thanks for this topic MisterMix

 

Google does not see the underscore as a word seperator.

http://mattcutts.com/blog/dashes-vs-underscores/

 

you should always use the hypen

 

this issue is confirmed here:

http://www.mattcutts.com/blog/guest-post-vanessa-fox-on-organic-site-review-session/


Vanessa fox talks about hypens near the bottom