These are tools that you can use to research keywords and your niche.
- www.compete.com
- www.quantcast.com
- images.googles.com
- trends.google.com
- www.alexa.com
- www.spyfu.com
- google.com
- news.google.com
- adwords.google.com/keywordtool
- www.wordtracker.com
- www.keyworddiscovery.com