• Fully configurable via system and user wide configuration files
• All options modifiable from the command line
• Supprts GIF, JPEG, XBM and PNG Image formats
• Retains files original ownerships & permissions
• Skips Symbolic links and Directories
• Clever user configuarable handling of WIDTH & HEIGHT tags alreday present
• Realatively fail safe (if it fails then it shouldn't write the file) if it does munge up your files you always have the backups created by wwwis
• Supports the following URL conventions
  • Relative path referencing (<IMG SRC="Images/me/alex.gif">)
  • Absolute URL referencing (<IMG SRC="http://example.com/Images/me/alex.gif">)
  • Absolute path referencing (<IMG SRC="/Images/people/alex.gif">)
  • Absolute path referencing to user's home directory (<IMG SRC="/images/blueball.gif">)
• Supports the base tag
• gets in touch with the server if it can't find the file locally (get's around path translations)
• Uses hash table of images fetched in each session
• Can use a proxy server to fetch external images
• Can have a input filter script
• supports ouytput filter script and output processing script
• If no changes are needed to a file it is not written
• Option to upcase HTML tags (unsupported)
• Option to complain if no ALT tag in HTML
• Can ignore or overwrite if it finds a WIDTH=100%
• All new GIF size routine to get size of first image
• All old bugs fixed....
• Searches both IMaGes and FIGUEs (i.e. <IMG and <FIGURE)
• There's probably many many more I can't remember....

How could you possibly want more?