This is the area of greatest activity. The burdensome updating of semiconductor manufacturer's catalogs is yielding to datasheets databases on the Web. With data and selection guides always updated, this offers significant advantages. Apart from these specifics, any technology manufacturer of significance now has, or is hurrying to have, a Web page with corporate information and general product information.
Ever more complex technology needs to reach a wider range of users, so the tradition of applications literature is moving into Web form, at its best beginning to overlap with monographs from traditional print text publishers.
It is hard to even define a representative sample, but here are a few defining examples:
Semiconductor Manufacturer's Directory
Amazon Books (sample order confirmation)
AnyWho (incl. reverse telephone lookup)