Intense Debate is a sophisticated external comment system for WordPress blogs. From Automattic.
https://www.intensedebate.com
Widgets · Comment System
Get access to data on 17,945 websites that are IntenseDebate Customers. We know of 1,663 live websites using IntenseDebate and an additional 16,282 sites that used IntenseDebate historically and 767 websites in the United States.
Get a list of 17,945 websites using IntenseDebate which includes location information, hosting data, contact details, 1,663 currently live websites and an additional 630 domains that redirect to sites in this list. 16,282 sites that used this technology previouslyand 767 websites in the United States currently using IntenseDebate.
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