An insightful 2007 interview from gothamist.com with Joshua White.
Not Fillmore-related, but I learned that the Brooklyn club Action City was located at Flatbush Avenue and Avenue U.
And well, I must admit I actually got this link from the comments of a Dangerous Minds piece on Billy Preston, but it does tie in with the Fillmore to some extent so I'll include it here--memories of the WOR-FM anniversary show at the Village Theater by a fella named Frank Patrick.
EDIT 5/27/2011: Also not Fillmore-related, but relevant to this blog regardless...a few hours after I made this post, I came across these images:
|Neil Young with the Buffalo Springfield at Ondine, by Thomas Monaster. I think it came from a Neil Young tumblr but I can't find the link now.|