411 REFERENCE · Wikibooks
Rebol Programming/rebol-link?
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
It's set by rebol to true if are you using Rebol/Link; otherwise it is set to false.
Rebol/Link is a client for Rebol IOS for group communications, for more information look a these pages:
http://www.rebol.com/ios/ios-intro.html
http://www.rebol.com/ios/ios-faq.html