There’s a concept I’ve been thinking of lately, which I see no reason won’t be taking off within a few years. It’s a concept of an “IP Cloud”. Technically, it’s a centralized database of ip-associated user profiles compiled by all participating Web sites. These can be the user profiles collected by sites from eBay to Yahoo to Google (even though they’re supposedly not collecting that information). Hell, even mobile device providers can even enter the act.
Making this a success either socially in an open source framework or from a business perspective, by say a subscription model, is not for me to figure out at this point. I do know however, that people will no doubt make good and most likely not so good use of such a powerful tool.