Followed by Closures are Weird The Third Installment Episode One: the Golden Era of LISP AI Research: the Rambling Usenet Post
Followed by Closures are Weird The Third Installment Episode Two: Everyday I am sitting on the shoulders of Scheme giants: the Steve Yegge wall of text
Followed by The Closure Chronicles: jesus christ the Chicken Scheme garbage collector is mind-blowing: the blogpost
Closures are weird: the Wikipedia article
Followed by Closures are weird part deux: what the hell are downward funargs?: the Stackoverflow thread
Followed by Closures are weird The Third Installment: continuations are life, continuations are love: the c2 entry