JobHero - Optimize and organize your job search on one dashboard
Hunter TechLookup - Create lists of websites by technology for free
Job Hunt Buddy - A better way to track and organize your job search
Techmap.io - Techmap is a workplace search engine to find companies using technologies (e.g., Rails, PHP, Java, etc.) that are used internally. Finally, a "Google for Workplaces" that helps people find a place to work with technologies they love!
JT - A CRM for job seekers
Setalist - The easiest way to make awesome lists for the internet