Linux weekly news[1] does this, they call them subscriber links. [1] http://lwn.net http://lwn.net. You see these links posted on hacker news from time to time

Linux weekly news[1] does this, they call them subscriber links. [1] http://lwn.net http://lwn.net. You see these links posted on hacker news from time to time From the site: The "subscriber link" mechanism allows an LWN.net subscriber to generate a special URL for a subscription-only article. That URL can then be given to others, who will be able to access the article regardless of whether they are subscribed. This feature is made available as a service to LWN subscribers, and in the hope that they will use it to spread the word about their favorite LWN articles. If this feature is abused, it will hurt LWN's subscription revenues and defeat the whole point. Subscriber links may go away if that comes about.