Free Negative Keyword Tool
Keyword discovery is one of the most important parts of any search marketing initiative. You need to find relevant keyword opportunities to use on your site and in your pay-per-click advertisements so you can attract search engine users who are likely to become customers.
But negative keyword discovery is equally important, because it prevents advertisers from wasting ad spend on keywords that aren't relevant to their business or their audience. Negative keywords offer an opportunity to strategically restrict your PPC advertisements, so they only reach your best potential audience.