Gap, which could redirect to the page on Gap.com that advertises back-to-school deals.

FORBES: What Retail Brands Need To Know About New Top-Level Domains

Members of the site who wanted to express their dissatisfaction with a recent redesign hijacked the front page to redirect users to rival service Reddit.

BBC: Reddit benefits from Digg site revamp

That script is written to execute the IR Send then redirect back to the referring page.

ENGADGET: How-To Hacks finalist: Controlling your home with your PSP

There was an issue with the Facebook Connect API that caused users on sites that use that API to redirect users to a Facebook error page.

CNN: How Facebook (briefly) killed the Internet