LinkMiner
Check My Links on steroids. Like many applications, LinkMiner check for broken links on a page. However, this free Chrome extension also shows you exactly how many links the broken connection has pointing to it. Uber useful for broken link building. Cool Characteristic: LinkMiner shows you how many inbound links that a page has...on a Google SERP. This way it is possible to zero-in on webpages with a great deal of outbound links (and therefore, broken link building chances).
Citation Labs' Link Prospector
A Industrial-level link opportunity finder. Link Prospector scans the internet for link building chances like source webpages, guest posts, blogs, news sites and more.
ScrapeBox
ScrapeBox is the self-proclaimed "Swiss army knife of SEO". Even though this tool has been built for black hat SEO, you can use ScrapeBox for white hat link construction tasks (such as link prospecting, finding contact information and even keyword study).
AuthoritySpy
AuthoritySpy Is designed to assist you find the top influencers on your area. It finds these movers and shakers by hunting in places like AllTop, Twitter and Followerwonk.
Linkstant
Linkstant You an email alert each time you get a new link. Why is this helpful? Nicely You can turn that one link into multiple links (and a relationship) with a quick "hey, thanks for linking to me" email. It also helps you identify standing management problems quickly so that you can nip them in the bud before they blow up.
