IMO popular mainstream consumption, and being difficult to track/spy, are at odds. If everybody and their brother reads what you write, I can't think of any way it could simultaneously be difficult for the Feds to follow it too.
You also have to think about tracking on the readers' side of things. If you read something on Facebook or Google+, you can count on that being tracked and added to that system's profile of you. If you read something on a blog, and block things like Google Analytics, it's harder to passively track.
