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Link
Analysis

Open Site Explorer
Research and compare backlinks with competitors for intelligent, targeted link building. Identify top pages, view social activity data, and analyze anchor text.
Social
Analytics

Followerwonk
Take a deep dive into your Twitter analytics. Analyze and segment your followers, compare users, and find out how to engage your audience.
SEO
Toolbar

MozBar
View link metrics, analyze page elements and SERP results, and access your favorite SEO tools in-line while you browse the web. For Chrome and Firefox.
Local
Marketing

Moz Local
Check your U.S. business listings on Google+ Local and other prominent local search engines—then see how you can improve them.
Google
Changes

MozCast
Track day-to-day changes and fluctuations in Google rankings. MozCast is your daily "weather report" showing turbulence in the Google algorithm.