By external links I also meant images, css, javascript, flash, or any embedded element in the HTML that calls an outside server. Such things may not be downloaded by wget, depending on your other parameters, but would trigger a lookup by opera/minimo as it looks through the pages. A quick way for a first check would be to search for .com/.net/.org/.edu, etc., in the HTML source of the page, and make sure no such tags appear. I just double-checked the html files I have and they definitely have no embedded images that aren't in the form "img src="file.jpg"" rather than "img src=www.domain.com/file.jpg", etc.