When entering a URL, such as www.glocktalk.com, why is the "www" even there, http://glocktalk.com works just as well. Most companies even advertise with the "www" but it works fine with or without it. Also, with free web hosts such as tripod, you can either do www.tripod.com/users/username123 or you can use http://username123.tripod.com. Anyone know the answer to this? I know it doesn't matter, but I've always wanted to know why we type "www".