The addon opens one out of 20 different SEO tools in a new tab, to check the currently viewed URL for back links automatically. You are able to see all Data Majestic SEO, SEOmoz' OpenSiteExplorer, BLEKKO, BING, ALEXA or other well known services provide to the Domain or deeplink. Chose your prefered services and customize the menue for your individual needs! Visit http://seox.me/BEaddon for further information and tipps! You also find a full list of the included Backlink Analysis Modules there.