21.  The survey covers World Wide Web sites and proprietary on-line services such as AOL and Prodigy.

22.  The Web is also appealing to subscribers because it offers more advanced features than any proprietary on-line service can provide.

23.  To cut connection costs, some day-trading firms, like All-Tech Investments, offer their proprietary services through the Internet.

24.  To stay current, these online providers started allowing their subscribers to access the Internet, in addition to the proprietary services they offer.

25.  With the birth of the World Wide Web, industry pundits again predicted the end for proprietary services like America Online.

26.  Yet perhaps the bigger challenge will be the business issues raised by shifting a proprietary service toward the open-standards environment of the Internet.

27.  AOL also never integrated the Netscape browser into its proprietary online service, instead relying on a version of Internet Explorer.

28.  In a closed market,suppliers will have no choice but to follow the rules of their localenvironment and tend to offer proprietary services through proprietarymeans.