There are some basic guidelines for choosing a domain name:
1. You must be able to justify your reason for using the name. Your domain name should principally consist of a name you are using as a trade name, trademark or corporate name.
2. It is better to select more than one name since you are not sure about the availability of the required domain name.
3. If the domain name that you are looking has already been registered but there is no content being displayed at the domain, try to find out the details of the owner of the domain. It is possible that he/she may be genuine and have yet not published any content.
4. It is also possible that the owner does not plan to create a web site but is willing to give you the domain at the original price. You must confirm that the seller has ownership rights for that particular domain name.