kt007, are you refering to google search engine? If yes, i think that is based on keyword searching as per my understanding. Hope it helps.
Ya, do agree with mild89. .com is always the first choice. If .com is not available, try to add some word in front, Eg: 'my', 'the', 'smart','today' and etc.
Well, then from your opinion,bluebeltp1, .org or .info is better? I think to register .inof will be cheaper than .org. Am i right?