One can use websec to monitor web page changes.  It is a perl script and is very easy to set up.

  1. Install mailx and postfix (if not working yet):
    # apt-get install mailutils postfix
  2. Setup postfix to be able to send mails.  You may be asked during installation about postfix configuration. If you are not asked or you already have postfix issue the following command:
    # dpkg-reconfigure postfix
    and select "Internet site".  (For pop3, imap, etc. setup see here.)
  3. Download and unpack websec.  Install it by 
    # make install
  4. Make a directory .websec in your home directory.  Copy "url.list" and "ignore.list" from the websec directory to .websec.
  5. Edit ".websec/url.list" to have the correct mail address, and the list of url to monitor.
  6. Run websec by typing
    $ websec
    and see it in actrion.
  7. Add it to cron job to let it autorun regularly.