David Weiss on the Security Implications of URL Shortening Services

Copiously researched, and apparently only by coincidence appearing on the same day as the aforelinked piece by Joshua Schachter.

The surge in interest in URL shorteners is almost entirely fueled by Twitter; as Kottke says, Twitter could put an end to it by shortening URLs themselves and auto-expanding shortened URLs when published.

★ Saturday, 4 April 2009