Scrapebox is an awesome tool for SEO purpose. It has multi uses. You can perform bulk work with this simple tool.
More then 10 addons are there each one with unique functions.
you can scrape links and can do blog commenting without consuming time.
You can find expired web 2,0s of high PA with this simple tool.
and many more functions that you can search online, All these features dont worth $ 5. But I am providing you that.