Web designers must do extra work for this, but progressive JPEG will make it possible to build this function into browsers and servers. It is now common practice to send out a short e-mail message with a URL embedded in it. This saves sending a large document by e-mail. Banking on the Internet with an emphasis on security. Visually attractive on-line telephone directory, with useful features.
Government tenders on-line.
A Spartan layout, but useful up-to date content. Advertising on the 'net, to support a useful commercial service. Sophisticated and comprehensive directory, but not run for profit. You can read of them elsewhere . The scope of some of these initiatives is breathtaking.