diff --git a/MACHINES b/MACHINES
index ddbf69a..73f80c7 100644
--- a/MACHINES
+++ b/MACHINES
@@ -162,8 +162,8 @@ Other machines
 
 Zsh has previously been compiled on the following machines, but the
 developers do not have direct access to them and the reports may be out
-of date.  Some of these OS's are now very long in the tooth.  We would
-be glad to receive any reports of success or failure on these OS's ---
+of date.  Some of these OSes are now very long in the tooth.  We would
+be glad to receive any reports of success or failure on these OSes ---
 and, of course, any others not mentioned in this file.
 
 Apple/NeXT OpenStep 4.2 for i386.
diff --git a/NEWS b/NEWS
index 7b2994b..bc14a8b 100644
--- a/NEWS
+++ b/NEWS
@@ -47,7 +47,7 @@ and an array "array" containing the words "several"
 - Improved (though still not perfect) POSIX compatibility for getopts
   builtin when POSIX_BUILTINS is set.
 
-- New setopt APPEND_CREATE for POSIX-compatible NO_CLOBBER behavior.
+- New setopt APPEND_CREATE for POSIX-compatible NO_CLOBBER behaviour.
 
 - Completion of date values now displays in a calendar format when
   the complist module is available.  Controllable by zstyle.
@@ -929,7 +929,7 @@ Parameter and expansion changes:
   - expansion of ~ and other globbing flags via ${~param} do not depend
     upon EXTENDED_GLOB (bug fix).
   - nested parameter substitutions require braces (this was always the
-    documented behavior, but previous parsers didn't enforce it).
+    documented behaviour, but previous parsers didn't enforce it).
   - quote only nested expansion, e.g. ${(f)"$(<file)"} reads complete
     `file', then splits lines into array.
 
@@ -954,7 +954,7 @@ Other changes:
 Debugging enhancements:
   - LINENO is now very much more useful in scripts and functions and is
     reported correctly in most error messages.
-  - ERREXIT behavior is now consistent with newer Bourne-like shells,
+  - ERREXIT behaviour is now consistent with newer Bourne-like shells,
     e.g. with respect to `if' tests that fail.
 
 Configuration changes:
diff --git a/README b/README
index 4b840b5..9571521 100644
--- a/README
+++ b/README
@@ -48,7 +48,7 @@ As noted in NEWS, the builtins declare, export, float, integer, local,
 readonly and typeset now have corresponding reserved words that provide
 true assignment semantics instead of an approximation by means of normal
 command line arguments.  It is hoped that this additional consistency
-provides a more natural interface.  However, compatbility with older
+provides a more natural interface.  However, compatibility with older
 versions of zsh can be obtained by turning off the reserved word
 interface, exposing the builtin interface:
 
@@ -392,7 +392,7 @@ Doc/Zsh/*.yo	The master source for the zsh documentation is written in
 		It is not required by zsh but it is a nice program so you
 		might want to get it anyway, especially if you are a zsh
 		developer.  It can be downloaded from
-		ftp://yodl.sourceforge.net/
+		https://fbb-git.github.io/yodl/
 
 Doc/zsh*.1	Man pages in nroff format.  These will be installed
 		by "make install.man" or "make install".  By default,