Omegle - A fast riser

Omegle.com is one of those site that appears out of nowhere, catches people the right way and rises instantly. It has also been able to sustain traffic over 2 weeks because it keeps getting mentioned as new people discover it. Look at the Alexa rank:

Alexa stats for Omegle

Here's a typical blog post - the kind that has given this site traffic over the last two weeks:

xkcd on Omegle

Omegle has a Good, short, unique name that is easy to remember. It has a simple concept that is easy to explain. It has simple, clean execution on its idea.