To be conservative, If we give CNN a very high market penetration, like 50%, then we can estimate that the entire Google Reader ecosystem is roughly 50 million users. This is backed up by the claim that in 2010 Google reader had, “tens of millions of monthly active users.” Second, I estimate that Reader is 80% of the total market for this type of RSS reader, which would put the total market at roughly 65 million users.

So about 65 million people are reading the news using RSS feed readers? 

That’s a lot. And a good news. 

How Large Will the Paid Feed Reader Market Be?