In case you’ve missed it, Kent Johnson’s gone after Marjorie Perloff (PDF) for her entry on “Avant-Garde Poetics” in the Princeton Encyclopedia of Poetry and Poetics, 4th ed. Writes Johnson:
[With] exception of a passing reference to the Brazilian brothers Augusto and Haroldo de Campos and their Concretista moment, not a single poet or group outside the Anglo-American/European experience is acknowledged. The entire Iberian Peninsula, even, goes missing!
Among those missing, he argues, are Vicente Huidobro, César Vallejo, Aimé Césaire, Kitasono Katue, Alejandra Pizarnik, and Raúl Zurita—plus he takes a few swipes at Conceptual Poetry and Flarf. Well worth reading.