Wrong Reel: The website of a podcast for "Hardcore Cinephiles, Film Fanatics, and Movie Buffs of All Kinds". It also offers insightful reviews and essays by the podcast crew, James Hancock, Parker Dixon, and Mikhail Karadimov.
Criterion Blues: Blog (and soon to be a podcast!) maintained by Aaron West, who aims to watch and review every film in the Criterion Blu-Ray Collection. Great essays not just on the films, but also on the additional features that make the Criterion Collection so valuable.
Cinema Gadfly: Another blog (and soon to be a podcast) devoted to the Criterion Collection. Insightful reviews and an awfully pretty web-design. Maintained by Arik Devens.
Flixwise: Website of the Flixwise podcast, hosted by Pauline "Lady P" Lampert, and aided and abetted by a coterie of her associates.
You Must Remember This: One of the best film-history podcasts out there, hosted by Karina Longworth and a rotating stable of adorbs voice-actors. The website also contains valuable essays and supporting documents.
Classic Film School: A website and blog maintained by Carrie Specht, a director and producer. A hugely valuable online resource for the Classic film fan.