It used to be that when you wanted to launch a web site, you simply picked the name you wanted, registered it, and put up a few pages of content. In the past decade or so, however, things have gotten a whole lot more complicated. Cute, fun, amateur-looking web sites are definitely out, for example. There are a zillion places to register your site these days, too. But perhaps one of the most annoying little details of finally choosing to launch a site is the fact that it’s actually kind of difficult to pick a URL.