Ben Woodward over at Naught Thought has THIS timely post concerning the rather fuzzy distinctions that are emerging at the intersections of process philosophy (PP), object-oriented ontology (OOO), and speculative realism/materialism (SR/SM). I see Woodward requesting a response with two fronts: first, for greater clarity and formalization amongst process philosophers. Second, a greater distinction between OOO and other branches of SR/SM. I can help with the first question, and less so with the second- I am too unfamiliar with the SR/SM territory to comment, save for my one reading of Meillassoux (sorry Ben!). As far as Meillassoux goes, I know there are folks out there who see many similarities between his work and the PP framework (particularly in Whitehead), hopefully a more able person can address these issues.
Moving along to the first part of the question, Woodward begins with the following charge: