SQI measures social activity on the web though scoring insights spanning 27 key content categories based on ShareThis’ reach across more than two million publisher sites helping advertisers to identify the most shared and valuable content and audience engagement across the web.

The companies said the integration of SQI marked the evolution of social from a networking tool to an industry planning resource.

President of global digital and data & analytics at SMG Lisa Weinstein said: “Integrating ShareThis’ social metric into our comScore interface gives us the intelligence we need all in one place and makes our media planning more efficient.”