Probably. They're pretty open about their business model -- gather data about where ads get served, and sell that to the people buying those ads. As long as a

Probably. They're pretty open about their business model -- gather data about where ads get served, and sell that to the people buying those ads. As long as a minority of people use Ghostery, they can keep making money. The only real way to control tracking is via an HTTP proxy that blocks connections to known bad actors (e.g. Google). Keeping an up-to-date list of miscreants is a pain, but doable. Ghostery does this for you, for a price.