if I have a site and redirect: yoursite.com to www.yoursite.com and people link to yoursite.com will I gain any benefits from these links?
It's late, but isn't yoursite.com the same as www.yoursite.com? Just putting the www in front of the same domain?
Whenever you redirected your site on www then it will open with www. If people will serch with only yourdomain.com then and then it will consider like www.yourdomain.com only. So dont worry about this. Only redirection is must in this case.