Popsters - Analyze your social media pages and spy on your competitors
The Influencer Marketing Stack - Free resources to launch a killer campaign
SocialRank - Graph search for TWTR. Filter by interests, location, etc
Insense & Paid Media - Find creators for short-term and long-term partnerships
SaaS Startup Content Marketing Playbook - Proven content marketing tactics to grow your SaaS startup
Mention ✪ Influencers Dashboard - Identify the influencers talking about your company