@Jethro: I understand this, and if you take a closer look at my regex you will notice that http:// and www. are optional. I added them for speed purposes

@Turbiance, Here you go, an on/off version of my simple script:

alias LinkKick {
  if ($isid) {
    return $($+(%,LinkKick:,$chan),2)
  }
  elseif ($($+(%,LinkKick:,$chan),2)) {
    unset $+(%,LinkKick:,$chan)
  }
  else {
    set $+(%,LinkKick:,$chan) $true
  }
}

menu Channel {
  $iif($LinkKick,Disable,Enable) LinkKick:LinkKick-Toggle
}

on @*:text:*:#:{
  if ($LinkKick) {
    var %m = /(?:(?:https?:\/\/(?:www\.)?)|ftps?:\/\/|www\.)?\S+\.(?:[a-z]{2,4}|musuem)\b/iS
    if ($regex($1-,%m)) {
      ban -ku30 $chan $Nick 2 Please don't spam the channel.
    }
  }
}