I have a site http://www.cristovideos.com I trying to get the first position in google with "videos cristianos" in the ranking this url "http://cristovideos.com" has a better position number 6 and www.cristovideos.com has number 23 but I want redirect cristovideos.com to www.cristovideos.com,that is good for seo or not,what is your opinion is better redirect to www.cristovideos.com or to cristovideos.com,or let both url without any redirect?
If it is ranking better with out www I would likely go with that. You don't want them both. Use htaccess to forward the www variant to non www. Here are the instructions to do it real fast... http://forums.seochat.com/google-optimization-7/htaccess-www-to-non-www-142850.html Nigel
it doesn't matter one way or another, just pick one and stick with it. Also make a note in google webmaster tools so google knows which one you want to use.