Most people in the domain industry would think .ORG if you are purchasing a non-profit domain name, sometimes a .NET domain depending if the .ORG is available. So what makes a good domain name in this instance ? Short and easy to remember this will drive your viewers to your site.
Make It Memorable
Your domain name should be easy and memorable. Something like www.chicagocatshelter.org is simple to remember and instantly communicates where you are and what you do.
When choosing your domain name, imagine someone is seeing it on a billboard while driving 60 miles per hour. You have only a couple of seconds, so make it count. Also, when people are talking about your charity, your domain name should not need explanation. Someone should be able to tell your name to someone else without having to repeat it.
To Grab a .ORG domain go to : http://www.asiaregistry.com/domains/generic/org-domain-registration.html
More of the article can be found at : http://www.redorbit.com/news/technology/1415775/how_to_choose_a_nonprofit_domain_name/