The University of Minnesota Libraries have an excellent guide to resources related to social media analytics. One in particular, Talkwalks.com, looks like it could be useful, but they only allow ONE free search.
C1: Social Media Strategy & Competitive Benchmarking
C2: Crisis-Resilient Candidate Engagement
C3: Smart Applicant Targeting During High Volume
C4: Social Media ROI & Talent Funnel Optimization
When searching, to narrow your results, use quotation marks to force the resource to search for a phrase, e.g., "social media." Try different combinations of your terms. You can use an asterisk at the end of a word stem to search for variations of a word, e.g., strateg* will find strategy, strategies, strategizing, strategising.
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Date Coverage: 1922-date
Maximum Users: Unlimited
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Date Coverage: 1915-present
Maximum Users: Unlimited
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