Advertising Age reports that while ad blocking pioneer Adblock Plus has been disinvited from the Interactive Advertising Bureau's annual leadership summit in California, a different ad blocking software provider, Ghostery, is still attending and speaking on stage. Scott Meyer, CEO and co-founder of Ghostery, an anti-tracking extension, will be speaking at the summit. "The over 400,000,000 downloads of AdBlock Plus are not going to go away," a blog post from Adblock Plus said. "Disallowing Adblock Plus from attending your event solves nothing. We will proceed to work with others to build a sustainable monetization model for the Internet."