cheat sheets.

$ cheat w3m
Page/Cursor motion: 
  SPC,C-v     Forward page
  b,ESC v     Backward page
  l,C-f       Cursor right
  h,C-b       Cursor left
  j,C-n       Cursor down
  k,C-p       Cursor up
  J           Roll up one line
  K           Roll down one line
  ^,C-a       Go to the beginning of line
  $,C-e       Go to the end of line
  w           Go to next word
  W           Go to previous word
  >           Shift screen right
  <           Shift screen left
  .           Shift screen one column right
  ,           Shift screen one column left
  g,M-<       Go to the first line
  G,M->       Go to the last line
  ESC g       Go to specified line
  Z           Move to the center line
  z           Move to the center column 
  TAB         Move to next hyperlink
  C-u,ESC TAB Move to previous hyperlink
  [           Move to the first hyperlink
  ]           Move to the last hyperlink

Hyperlink operation: 
  RET            Follow hyperlink
  a, ESC RET     Save link to file
  u              Peek link URL
  i              Peek image URL
  I              View inline image
  ESC I          Save inline image to file
  :              Mark URL-like strings as anchors
  ESC :          Mark Message-ID-like strings as news anchors
  c              Peek current URL
  =              Display information about current document
  C-g            Show current line number
  C-h            View history of URL
  F              Render frame
  M              Browse current document using external browser (use 2M and 3M
  to invoke second and third browser)
  ESC M         Browse link using external browser (use 2ESC M and 3ESC M to
  invoke second and third browser)

File/Stream operation:
  U    Open URL
  V    View new file
  @    Execute shell command and load
  #    Execute shell command and browse

Buffer operation:
  B      Back to the previous buffer
  v      View HTML source
  s      Select buffer
  E      Edit buffer source
  C-l    Redraw screen
  R      Reload buffer
  S      Save buffer
  ESC s  Save source
  ESC e  Edit buffer image

Buffer selection mode:
  k, C-p    Select previous buffer
  j, C-n    Select next buffer
  D         Delect current buffer
  RET       Go to the selected buffer

Bookmark operation:
  ESC b    Load bookmark
  ESC a    Add current to bookmark

Search:
  /,C-s    Search forward
  ?,C-r    Search backward
  n        Search next
  N        Search previous
  C-w      Toggle wrap search mode

Mark operation:
  C-SPC      Set/unset mark
  ESC p      Go to previous mark
  ESC n      Go to next mark
  "          Mark by regular expression

Miscellany:
  !      Execute shell command
  H      Help (load this file)
  o      Set option(Config Panel)
  C-k    Show cookie jar
  C-c    Stop
  C-z    Suspend
  q      Quit (with confirmation, if you like)
  Q      Quit without confirmation

Line-edit mode:
  C-f        Move cursor forward
  C-b        Move cursor backward
  C-h        Delete previous character
  C-d        Delete current character
  C-k        Kill everything after cursor
  C-u        Kill everything before cursor
  C-a        Move to the top of line
  C-e        Move to the bottom of line
  C-p        Fetch the previous string from the history list
  C-n        Fetch the next string from the history list
  TAB,SPC    Complete filename
  RETURN     Accept

From: http://w3m.sourceforge.net/MANUAL
Version 5, updated 719 days ago.
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