Hypothesis (probably completely uncontroversial): In the age of link-driven discovery and Google, URLs no longer matter.

So the rad URLs of the not-so-distant future will be super-long and ridiculous like Jennifer Daniel's... or even better, they'll just be strings of random alphanumeric characters!

My next site is totally going to be

http://liadsf8o4hjldfsbj.com

But it'll be titled "Your Daily Bald Eagle Picture" and you will, of course, be able to find it instantly by googling "bald eagle blog."