Elucify - A completely free software tool that uses crowdsourced data to find business email addresses
Lead Forensics - B2B website analytics and lead generation.
eTrigue - Real-time Sales Acceleration & Marketing Automation Solution
FindThatLead Prospector - Feed your sales team with daily leads.
BuiltWith - Find out the technology behind websites
LeadCrunch - Discover New Customers. Now.