When choosing a domain name or any web address for your website it is important that you get a memorable and snappy domain so people can remember it. There are also some things which you should not do.

Make it flow

One thing I think should never be included in domains is an "-". They should not be put in. Take a look at these two examples:

www.bigcats.com
www.big-cats.com

Try saying them. The first one is simply "bigcats .com." Whereas the second one is "big dash cats .com." Much more complex and so much harder to remember. Domains are far more snappy if the words follow on without being broken up with dots and dashes. Why do you thing nobody has bought a .name domain?

Words not letters

Many people are going on about how they are selling rare 3 letter domains. The problem is that these domains are usually a mix of random numbers and letters. It's much easier to remember a name than some random initials. Don't just get the initials of your domain when its more complex. Get the full name.

Simple words

Not everyone is a great speller. Try to keep the words in your domain simple and try not to use words which are often spelt wrong. If you really must do this then you should buy up alternative spellings to your domain and set them to redirect to the correct domain name.