1. Select a suitable name for your web and email presence.
As a first choice, always try to match your business name with your domain name. If that domain is already registered by another party, try different variations. Always try and choose a domain name that calls to mind what you want your online presence to achieve.
2. The shorter, the better.
Shorter names are usually easier to remember, but be careful not to abbreviate your name too much as to cause confusion. Concentrate on one or two words in your name that have the most impact, and work your abbreviations around those words.
3. Try registering the dot-com (.com) version first.
Unless your business is non-profit (.org), an educational institution (.edu), or an ISP (.net), the true default, what most internet users will try first, is the .com. When people look for your site on the Web, they are likely to first try your company name with the .com.
4. Word of Mouth is important.
The easier your domain name is to remember or the more fun it is to say, the more people will talk about it. Word of mouth is still one of the most cost-effective ways to boost site traffic.
5. Think about registering related names.
If you are registering a .com address for your business, think about registering the other top level domain versions as well. This will keep them out of the hands of competitors. Larger businesses sometimes register similar-looking addresses that contain alternate spellings of your name or common typos as well as discouraging slanderous sites by registering "yourcompanynamestinks.com" or similar disparaging names. To make the most out of these alternative sites, point them all to your main site.
6. If possible, put a keyword in your domain name.
For an online music store, having the word "music" in the domain name may help improve your site's rankings on search engines and directories. However, do not force the key word into your name if it renders your domain awkward or unmemorable.
7. Uh-oh, the dot com is unavailable.
If you have a domain in mind that is immediately recognizable as your company's name, but the .com, .net, or .org versions aren't available, try the new top-level domains .biz and .info. Alternately, you could register it using .cc, .tv, or another country code top-level domain.
8. Hyphens can help you get the name you want.
Hyphenating a multi-word domain name can help if the un-hyphenated version is unavailable.