Ace compiler and commentator David Hudson, now doing his thing on Fandor, has been collecting all manner of excellent writings on the late Andrew Sarris, I recommend you go here and explore from there.
I was honored when my friend Kent Jones asked me to contribute some memories of Andrew for a multi-contributor eulogy he was compiling for the Film Comment website. It just went up (David H.'s post was not updated to reflect this as I was composing this) and is here, and also contains wonderful short pieces by Kent, Geoffrey O'Brien, Phillip Lopate, and Robert Horton. So far. I have reason to believe more will be added.