i agree with saninfosys, 1. keyword related (according to which i want to up my website on it) 2. Most chance to get .com (of course, like .com, if it is available, if not go for .net etc.) 3. Short name (as possible as short and which fulfill your requirement) 4. Must be available (if available, you can get it)
domian should be short and simple and would be easy to remember.. andsearch for the good key and have DOT.COM.
If the domain name (keywords) that I would not have to. Com, what alternatives other than com?, Most in search engines like