Simply Measured - Simply Measured helps data hungry marketing & PR folks measure social media and create beautiful, custom reports in Excel and other formats.
Metricool - Analyze, manage and measure your social media activity
Audiense - Consumer insights & marketing platform for Twitter
Open Benchmarks - Live SaaS metric benchmarks from over 600 companies
Brand24 - Brand24 gives you instant access to mentions about your brand across the web.
GOAL - Creating perfect social media advertising