The following is an excerpt from the CoachStart Manual.

One approach is to choose a domain which describes WHO you work with; e.g., www.babyboomers.com or www.highenergywomen.com.

Another is to choose a domain which describes WHAT problem you solve for them; e.g., www.careerdirection.com, or www.relationshipbliss.com.

You may even be able to fit in both; e.g., www.happymarriage4women.com.

It’s also important to have a name which is ‘search engine friendly’.  For example, I chose www.life-coaching-resource.com and www.lifecoaching.com.au.  Why? Because when people search for ‘life coaching’ in the search engines, the search engines see that I have ‘life coaching’ in the domain name, and decide my site should come up pretty high in the list.  So work out your ‘target key words’ — the words people will use to search for you, and get a domain that contains those words.

But clearly you can’t always do all of the above in one domain name.  Don’t let search engine traffic run you.  A name you like, which is memorable, is key.  And — it’s OK to have two domain names — one which will be attractive to the search engines and one which you really love to tell people.