[lenkost]

Giggleton: with instaPaper you need to wait for a book - they deliver on daily schedule. In my case I receive book in 2-3 min. after request. And you cannot do it from Kindle browser. As far as formatting it is done by Calibre utility and is quite good.

DiapDealer: It is possible to do without IIS by using Outlook macro like this:

Public WithEvents myOlItems As Outlook.Items
Public Sub Application_Startup()
    Set objInbox = Session.GetDefaultFolder(olFolderInbox).Items
End Sub

Private Sub myOlItems_ItemAdd(ByVal Item As Object)
      If TypeName(Item) = "MailItem" Then
           If InStr(1, Item.Subject, "passfrase", vbTextCompare) > 0 Then
               Set fs = CreateObject("Scripting.FileSystemObject")
               Set f = fs.CreateTextFile("c:\Kindle\Link.txt", True)
               f.WriteLine (Item.Body)
               f.Close
           End If
      End If
End Sub

Most browser including iPhone and iPad have "send Link via email" option. Enter any passfrase in email subject and Outlook on your computer will create Link.txt file with page URL. And the rest of it as above.

This cannot be used from Kindle itself and the Outlook must be always on.
This was my original approach but I prefer IIS much better.