Keywords Everywhere is a browser add-on that will get you FREE search volume, CPC & competition data for 16+ of your favorite marketing tools!
Really makes it easy to find related keywords, search volumes, and competitiveness.Cons:
Not much really. But I would have loved a way to scrape suggested searche a-la now-defunct ubersuggest.io
Not much more to say really. Amazing product. Works quite well.Jeff Kahuthu has used this product for one month.