https://rapportive.com/
This appears to be a chrome extension for Gmail. Once you have downloaded Rapportive it will show the Linkedin profile of people who send you emails. This allows you to easily connect with them on LinkedIn right inside of Gmail.
Video presented by Christian Rodwell
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Please watch: "What Is Click Funnels? Sales & Marketing Funnels For Small Business Online"
https://www.youtube.com/watch?v=wIHGEMg7RlQ
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