Wordtracker is an online tool that can be used to grow the seed words into a keyword list, it is a powerful tool and can give us a lot of information including suggesting words related to our own, looking for keywords on a competitors site, showing us how many times a keyword is used in the past month.
Using all this information we can build a comprehensive list of keywords that are targeted to our market.
Full details of how to log into and use wordtracker can be found in the technical manual.