diff --git a/Doc/library/aepack.rst b/Doc/library/aepack.rst
index daaa9b2..d8aef6b 100644
--- a/Doc/library/aepack.rst
+++ b/Doc/library/aepack.rst
@@ -84,7 +84,3 @@
 
    Module :mod:`aetypes`
       Python definitions of codes for Apple Event descriptor types.
-
-   `Inside Macintosh: Interapplication Communication <http://developer.apple.com/techpubs/mac/IAC/IAC-2.html>`_
-      Information about inter-process communications on the Macintosh.
-
diff --git a/Doc/library/cookielib.rst b/Doc/library/cookielib.rst
index a84649c..4a91953 100644
--- a/Doc/library/cookielib.rst
+++ b/Doc/library/cookielib.rst
@@ -121,7 +121,7 @@
       Extensions to this module, including a class for reading Microsoft Internet
       Explorer cookies on Windows.
 
-   http://www.netscape.com/newsref/std/cookie_spec.html
+   http://wp.netscape.com/newsref/std/cookie_spec.html
       The specification of the original Netscape cookie protocol.  Though this is
       still the dominant protocol, the 'Netscape cookie protocol' implemented by all
       the major browsers (and :mod:`cookielib`) only bears a passing resemblance to
diff --git a/Doc/library/imaplib.rst b/Doc/library/imaplib.rst
index 4279fa5..e18d7d5 100644
--- a/Doc/library/imaplib.rst
+++ b/Doc/library/imaplib.rst
@@ -117,7 +117,7 @@
 
    Documents describing the protocol, and sources and binaries  for servers
    implementing it, can all be found at the University of Washington's *IMAP
-   Information Center* (http://www.cac.washington.edu/imap/).
+   Information Center* (http://www.washington.edu/imap/).
 
 
 .. _imap4-objects:
diff --git a/Doc/library/mailbox.rst b/Doc/library/mailbox.rst
index c918953..7cc2923 100644
--- a/Doc/library/mailbox.rst
+++ b/Doc/library/mailbox.rst
@@ -404,7 +404,7 @@
       Notes on Maildir by its inventor. Includes an updated name-creation scheme and
       details on "info" semantics.
 
-   `maildir man page from Courier <http://www.courier-mta.org/?maildir.html>`_
+   `maildir man page from Courier <http://www.courier-mta.org/maildir.html>`_
       Another specification of the format. Describes a common extension for supporting
       folders.
 
@@ -461,7 +461,7 @@
    `mbox man page from tin <http://www.tin.org/bin/man.cgi?section=5&topic=mbox>`_
       Another specification of the format, with details on locking.
 
-   `Configuring Netscape Mail on Unix: Why The Content-Length Format is Bad <http://home.netscape.com/eng/mozilla/2.0/relnotes/demo/content-length.html>`_
+   `Configuring Netscape Mail on Unix: Why The Content-Length Format is Bad <http://www.jwz.org/doc/content-length.html>`_
       An argument for using the original mbox format rather than a variation.
 
    `"mbox" is a family of several mutually incompatible mailbox formats <http://homepages.tesco.net./~J.deBoynePollard/FGA/mail-mbox-formats.html>`_
@@ -665,7 +665,7 @@
    `Format of Version 5 Babyl Files <http://quimby.gnus.org/notes/BABYL>`_
       A specification of the Babyl format.
 
-   `Reading Mail with Rmail <http://www.gnu.org/software/emacs/manual/html_node/Rmail.html>`_
+   `Reading Mail with Rmail <http://www.gnu.org/software/emacs/manual/html_node/emacs/Rmail.html>`_
       The Rmail manual, with some information on Babyl semantics.
 
 
@@ -1541,10 +1541,6 @@
    :class:`UnixMailbox` except that individual messages are separated by only
    ``From`` lines.
 
-   For more information, see `Configuring Netscape Mail on Unix: Why the
-   Content-Length Format is Bad
-   <http://home.netscape.com/eng/mozilla/2.0/relnotes/demo/content-length.html>`_.
-
 
 .. class:: PortableUnixMailbox(fp[, factory])
 
diff --git a/Doc/library/mimetools.rst b/Doc/library/mimetools.rst
index 8da385e..7813867 100644
--- a/Doc/library/mimetools.rst
+++ b/Doc/library/mimetools.rst
@@ -73,7 +73,7 @@
    Module :mod:`multifile`
       Support for reading files which contain distinct parts, such as MIME data.
 
-   http://www.cs.uu.nl/wais/html/na-dir/mail/mime-faq/.html
+   http://faqs.cs.uu.nl/na-dir/mail/mime-faq/.html
       The MIME Frequently Asked Questions document.  For an overview of MIME, see the
       answer to question 1.1 in Part 1 of this document.
 
diff --git a/Doc/library/mimetypes.rst b/Doc/library/mimetypes.rst
index c92f821..818f39f 100644
--- a/Doc/library/mimetypes.rst
+++ b/Doc/library/mimetypes.rst
@@ -41,7 +41,7 @@
 
    Optional *strict* is a flag specifying whether the list of known MIME types
    is limited to only the official types `registered with IANA
-   <http://www.isi.edu/in-notes/iana/assignments/media-types>`_ are recognized.
+   <http://www.iana.org/assignments/media-types/>`_ are recognized.
    When *strict* is true (the default), only the IANA types are supported; when
    *strict* is false, some additional non-standard but commonly used MIME types
    are also recognized.
diff --git a/Doc/library/othergui.rst b/Doc/library/othergui.rst
index b36568d..ab4efdb 100644
--- a/Doc/library/othergui.rst
+++ b/Doc/library/othergui.rst
@@ -36,14 +36,12 @@
 
    `PyGTK <http://www.pygtk.org/>`_
       is a set of bindings for the `GTK <http://www.gtk.org/>`_ widget set. It
-      provides an object oriented interface that is slightly higher level than the C
-      one. It comes with many more widgets than Tkinter provides, and
-      has good Python-specific reference documentation. There are also `bindings
-      <http://www.daa.com.au/~james/gnome/>`_ to  `GNOME <http://www.gnome.org>`_.
-      One well known PyGTK application is
-      `PythonCAD <http://www.pythoncad.org/>`_. An
-      online `tutorial <http://www.pygtk.org/pygtk2tutorial/index.html>`_ is
-      available.
+      provides an object oriented interface that is slightly higher level than
+      the C one. It comes with many more widgets than Tkinter provides, and has
+      good Python-specific reference documentation. There are also bindings to
+      `GNOME <http://www.gnome.org>`_.  One well known PyGTK application is
+      `PythonCAD <http://www.pythoncad.org/>`_. An online `tutorial
+      <http://www.pygtk.org/pygtk2tutorial/index.html>`_ is available.
 
    `PyQt <http://www.riverbankcomputing.co.uk/pyqt/index.php>`_
       PyQt is a :program:`sip`\ -wrapped binding to the Qt toolkit.  Qt is an
diff --git a/Doc/library/robotparser.rst b/Doc/library/robotparser.rst
index 2451799..6cc7df8 100644
--- a/Doc/library/robotparser.rst
+++ b/Doc/library/robotparser.rst
@@ -15,9 +15,8 @@
 
 This module provides a single class, :class:`RobotFileParser`, which answers
 questions about whether or not a particular user agent can fetch a URL on the
-Web site that published the :file:`robots.txt` file.  For more details on  the
-structure of :file:`robots.txt` files, see
-http://www.robotstxt.org/wc/norobots.html.
+Web site that published the :file:`robots.txt` file.  For more details on the
+structure of :file:`robots.txt` files, see http://www.robotstxt.org/orig.html.
 
 
 .. class:: RobotFileParser()
diff --git a/Doc/library/sha.rst b/Doc/library/sha.rst
index 3851d94..be38f75 100644
--- a/Doc/library/sha.rst
+++ b/Doc/library/sha.rst
@@ -82,6 +82,6 @@
       <http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf>`_,
       published in August 2002.
 
-   `Cryptographic Toolkit (Secure Hashing) <http://csrc.nist.gov/encryption/tkhash.html>`_
+   `Cryptographic Toolkit (Secure Hashing) <http://csrc.nist.gov/CryptoToolkit/tkhash.html>`_
       Links from NIST to various information on secure hashing.
 
diff --git a/Doc/library/tix.rst b/Doc/library/tix.rst
index 04ea23a..ff2cfff 100644
--- a/Doc/library/tix.rst
+++ b/Doc/library/tix.rst
@@ -35,7 +35,7 @@
    `Tix Programming Guide <http://tix.sourceforge.net/dist/current/docs/tix-book/tix.book.html>`_
       On-line version of the programmer's reference material.
 
-   `Tix Development Applications <http://tix.sourceforge.net/Tide/>`_
+   `Tix Development Applications <http://tix.sourceforge.net/Tixapps/src/Tide.html>`_
       Tix applications for development of Tix and Tkinter programs. Tide applications
       work under Tk or Tkinter, and include :program:`TixInspect`, an inspector to
       remotely modify and debug Tix/Tk/Tkinter applications.
diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index 71b71e2..d393341 100644
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -21,7 +21,7 @@
    `An Introduction to Tkinter <http://www.pythonware.com/library/an-introduction-to-tkinter.htm>`_
       Fredrik Lundh's on-line reference material.
 
-   `Tkinter reference: a GUI for Python <http://www.nmt.edu/tcc/help/pubs/lang.html>`_
+   `Tkinter reference: a GUI for Python <http://infohost.nmt.edu/tcc/help/pubs/lang.html>`_
       On-line reference material.
 
    `Tkinter for JPython <http://jtkinter.sourceforge.net>`_
diff --git a/Doc/library/zipfile.rst b/Doc/library/zipfile.rst
index e3c852b..1f365d5 100644
--- a/Doc/library/zipfile.rst
+++ b/Doc/library/zipfile.rst
@@ -13,7 +13,7 @@
 provides tools to create, read, write, append, and list a ZIP file.  Any
 advanced use of this module will require an understanding of the format, as
 defined in `PKZIP Application Note
-<http://www.pkware.com/business_and_developers/developer/appnote/>`_.
+<http://www.pkware.com/documents/casestudies/APPNOTE.TXT>`_.
 
 This module does not currently handle multi-disk ZIP files, or ZIP files
 which have appended comments (although it correctly handles comments
@@ -83,7 +83,7 @@
 
 .. seealso::
 
-   `PKZIP Application Note <http://www.pkware.com/business_and_developers/developer/appnote/>`_
+   `PKZIP Application Note <http://www.pkware.com/documents/casestudies/APPNOTE.TXT>`_
       Documentation on the ZIP file format by Phil Katz, the creator of the format and
       algorithms used.
 
@@ -373,7 +373,7 @@
 .. attribute:: ZipInfo.extra
 
    Expansion field data.  The `PKZIP Application Note
-   <http://www.pkware.com/business_and_developers/developer/appnote/>`_ contains
+   <http://www.pkware.com/documents/casestudies/APPNOTE.TXT>`_ contains
    some comments on the internal structure of the data contained in this string.
 
 
diff --git a/Doc/library/zipimport.rst b/Doc/library/zipimport.rst
index 53eae65..cec6b72 100644
--- a/Doc/library/zipimport.rst
+++ b/Doc/library/zipimport.rst
@@ -35,7 +35,7 @@
 
 .. seealso::
 
-   `PKZIP Application Note <http://www.pkware.com/business_and_developers/developer/appnote/>`_
+   `PKZIP Application Note <http://www.pkware.com/documents/casestudies/APPNOTE.TXT>`_
       Documentation on the ZIP file format by Phil Katz, the creator of the format and
       algorithms used.