I am currently working a personal SEM project for a family member and I am about to rip my hair out waiting for the name servers to update throughout the world.
A Little Back Story
The family friend is self employed and is in need of a web site to help promote their services. Being the great person that I am I decide that I am going to build them a simple website, hosting, and the domain name to boot. I finally got enough done to go live with the site, but the name servers are taking their sweet time. I put in the for name server change on Saturday afternoon. It is currently 10pm on Tuesday. They say that it takes up to 72 hours for these things to get done, so technically, I have till tomorrow. The last website I had to do this for, this site, took a lot less time and I even had to do it twice. The documentation was not updated with the correct info.
I will have to keep my fingers crossed until then. But, in the mean time I found a great online tool, Whatsmydns.net, to help me keep track of the progress of the Name Server Propagation. Its a free tool that allows you to track a bunch of different DNS info about a domain as it exists in various servers around the world.
I will keep you all posted as to when the new site is finally up and running.