Here is a list of some of the best tools in the SEO business currently, and what specific needs they address.
from Blogger http://evangelinagius.blogspot.com/2015/04/the-best-seo-tools-2015-edition_7.html
from Blogger http://evangelinagius.blogspot.com/2015/04/the-best-seo-tools-2015-edition_7.html
from Blogger http://evangelinagius.blogspot.com/2015/04/the-best-seo-tools-2015-edition.html