Referrer is a variable that is automatically submitted when accessing sites on the Internet. If you click on the link to the RefControl Firefox add-on on my site the Mozilla website will see the url of this article as the referrer which simply means the site the user came from. Sometimes the referrer is empty [...]

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The Wallstreet Journal [link] is one of those online magazines that has a subscription service that protects some of its stories from being read by users that have no subscription. Only an excerpt of the story is available for free while the rest can only be read by subscribers, or so we though.
Apparently though the [...]

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