Ad blocking is all the rage. Included in the blocking is analytics and thus Google Analytics.
At some point I will consider switching to (or making) a first-party tracking system for Google Analytics because more and more users will block the normal third-party implementation.
What is the easiest way for me today to measure the number of users which have blocked Google Analytics? I imagine this will be some combination of comparing server access logs with GA or some other scripted feature on my server.