If you take my advice don�t go for paid tools at the beginning. Now we will discuss in brief that which tool you
may use and how to get the better results.
The very first tool I�ll recommend is �Google Keyword Tool� It is a free tool and very helpful in selecting the right keyword (we will not go in detail how to use this tool but if you people are interested we may post a separate thread on this topic). First write down the keywords you think best describe your niche, now go to google and search for google keyword tool. Put all your keywords there and see the result. Google will give lot of results about related search. Look for the keywords and select the one that has reasonable traffic but low competition. Write down these and now go to the other tool.