I was recently turned onto an excellent free adwords keyword tool called ‘Uber Suggest’.
This tool uses Google suggest to take your search query and give you a list of suggestions Google would make for that query.
It’s hard to explain, but if you go to
type in a keyword that relates to your business, choose your country, fill in the captcha, and click on suggest, you’ll see how it works.
I’m finding it useful for uncovering long tail keywords and negatives.
Play around with it. Hopefully you’ll find it useful, too.