If you’ve ever wondered how the internet will look on a standard paper notebook, you now have an answer.
Chinese researchers believe that Internet growth can be predicted using a variant of Moore's Law and that the size of internet (host names) doubles in size every 5.32 years.
The short answer, according to the site How Old is the Internet, is that the Internet is 25 years and 11 months old.
Here is a list of the most popular Internet sites arranged as a Periodic Table (the one from your Chemistry class).
Domain names, especially .com based ones, are very hard to get. Domai.nr allows you to search for unconventional domain names like del.icio.us or blo.gs in case the .com variant is not available.