content: The great thing about HTTrack is that it can follow all links on a page to a specified depth, then copies everything, but replaces all links in your copy to point to your copied pages. You can then browse your copy, pretty much the same as if it was online. It's a notch above similar tools I've tried. The whole website copying idea doesn't seem too difficult at first, but somehow other tools get something wrong and I'm sure it would be annoying to program yourself.