As a marketer in an SEO agency, it can be difficult to keep on top of the latest developments in software. Developments that could help you to do your job even more effectively than you already do. In this article we explain why you should be using SEO tools, and take a quick look at some of the key features that you should be looking for in these tools. We also give an overview of some of the better known offerings available. This overview is by no means a comprehensive list, but should serve as a useful guide to point you in the right direction.