As shown in my last blog post, now that Google are using expanded broad match to trigger ads from travel ppc for a search query on shooting holidays USA, getting a comprehensive list of negative keywords is a good idea. In this post I list five good resources for finding negative keywords; some of them are not intended to be used in this way but they still give useful information about possible negative keywords.
1. SEO Book Forums
Most campaigns will want a generic list of negative keywords. Things like free or reviews are good examples of negative keywords for any sort of campaign ...