It usually doesn’t work out very well for a group that attempts to silence dissent, but the Interactive Advertising Bureau (IAB) is giving it a try nonetheless.

The IAB uninvited Adblock Plus from its annual leadership conference to be held next week in Palm Desert, California. Adblock Plus had paid the “hefty entrance fee” and was listed as attending the IAB event, until IAB struck Adblock Plus from its list of attendees.

On the Adblock Plus blog, Ben Williams explained that the company believed there had been a mistake when an email came saying the company’s registration had been canceled for the IAB summit and the registration fee returned. After all, Adblock Plus attended last year and coaches “IAB members about our Acceptable Ads guidelines for reasonable, nonintrusive ads.”

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