Not only is this my fave all around movie journal on the web, covering the old and new, the esoteric, the familiar and the overfamiliar, it also contains one of the best Cinegeek resources; the Great Directors database, featuring essays by scholars, fans and in some cases fellow filmmakers on just about every important director in the medium's history. Trust me, expert or a neophyte you'll kill a whole afternoon clicking through the names on this list.
Just like Senses Of Cinema's Great Director's Database this is an essential listing of DP's from the birth of the medium to the modern masters of light. Learn about the advent and evolution of the movie camera and the men who invented the gear and created the images. Another webpage you'll get lost in for hours.