Last weekend, Facebook users clamored to get a personalized Web address. Within the first 15 minutes, about half a million had grabbed a vanity URLs. With one, a user will be able to make a personal home page similar to those on MySpace. Facebook says it will now be easier to find profiles via searching. There are some restrictions, such as celebrity and brand names, politicians and those with profanity. Only those who had an account before June 9 can claim an addy.