Nullspace (Chris Briem), a Pittsburgh-based urban economics blog discusses value capture and land value tax in Remembering when the Henry George Club ran Pittsburgh.
At the end he writes
Alas.. all that and the truth is even more complicated. If you really parse it, Henry George may be having a revival of sorts right here in Pennsylvania. When you really deconstruct the tax-math-accounting of it, a lot of TIF's and tax incentives are really a tiered tax by other means, though some Georgists react a bit badly to the analogy. We can debate TIF implementation, here and elsewhere, another day. That and things like the Pittsburgh tax abatement program (modeled a bit loosely on Philadelphia's groundbreaking tax abatement program) are effectively Georgian in intent, if not name.