Found on comp.emacs.sources: ibuffer.el
This is a really neat mode! We've got to have it.
(define-key ctl-x-map [(control ?b)] #'ibuffer)
;;; ibuffer.el --- operate on buffers like dired
;; Copyright (C) 2000 Free Software Foundation, Inc.
;; Emacs Lisp Archive Entry
;; Author: Colin Walters <walters(a)cis.ohio-state.edu>
;; Created: 8 Sep 2000
;; Version: 1.9
;; X-RCS: $Id: ibuffer.el,v 1.115 2001/04/18 04:56:23 walters Exp $
;; URL: http://www.cis.ohio-state.edu/~walters
;; Keywords: buffer, convenience
;; This file is not currently part of GNU Emacs.
;; This program is free software; [... GPL ...]
;;; Commentary:
;; ibuffer.el is an advanced replacement for the `buffer-menu' which
;; is normally distributed with Emacs. Its interface is intended to
;; be analogous to that of Dired.