Based on Klout, a company that provides social media analytics to measure influence across social networks, the Heritage Foundation has more clout. Its Klout score (which range from 1 to 100) is 66, while Brookings' Klout score is 61.
The score is based on data taken from sites such as Facebook and Twitter and measures the size of a person's (or organization's) network, the content created, and how people interact with that content.
It should be noted that the accuracy of Klout scores is often questioned.
