Choosing Keywords with the Google Keyword Sandbox & Overture Search Term Suggestion Tool
Keywords are the words and especially phrases used by people when they search for web pages. For example, if I am looking for a vacation in Fiji, I would type something like 'Fiji vacation' into a search engine. Those are keywords.
Maximizing Keywords: 2 Methods
Obviously, you should choose words and phrases that people actually enter into search engines. There are couple of methods you can use...one is free and the other is not (although it has a free trial). Both methods can produce good results, but the paid version is certain to save you a lot of time.
Just remember, when choosing your keywords, pick the ones that will drive the right kind of visitors to your website. You want people who want to actually purchase and buy your product/vacation. Check your website stats to see what keywords are bringing you traffic, but don't choose keywords just for traffic's sake (use Google Analytics for this, see other blog entry).
The 2 methods are:
Free: Using Google Keyword Sandbox & Overture Search Term Suggestion Tool