SAN FRANCISCO, CA — (Marketwire) — 10/08/12 — , a best-in-class Enterprise Social Network, today announced additional technology visionaries and thought leaders on the agenda for , the company-s first annual conference. Yammer will also host a daylong hackathon event, Hacktoberfest, prior to YamJam -12.

YamJam -12 is two days of keynotes, special announcements, customer success stories, live product demos, hands-on training and networking opportunities.

New YamJam -12 speakers include:

David Kirkpatrick, Internet and technology expert, author of “The Facebook Effect”

Charlene Li, founder and analyst, Altimeter Group

Nikos Drakos, research director, Gartner

Greg Moran, senior vice president and CIO, IT Infrastructure and Operations, Nationwide

Laurel Castiglione, senior manager, Intranet Strategy, PG&E

Raymond Velez, CTO, Razorfish

Chris Laping, senior vice president, Business Transformation and CIO, Red Robin

Ira Gottlieb, vice president, Global Communications, Tyco Fire & Security

These speakers will be joining keynotes from David Sacks, founder and CEO of Yammer, Adam Pisoni, co-founder and CTO of Yammer, and Jeff Teper, corporate vice president, Microsoft Office Division.

Oct. 28-30, 2012

The Westin St. Francis, 335 Powell St., San Francisco. A special rate at The Westin St. Francis is available for YamJam -12 attendees. To book your hotel room or register for the event, please visit

Yammer will also be hosting its first annual Hacktoberfest for developers at its headquarters in San Francisco on Sunday, Oct. 28. Judges include executives from Yammer and Microsoft as well as Mamoon Hamid, general partner, Social + Capital Partnership, and Ravi Belani, managing director of Alchemist Accelerator. Prizes include up to $5,000 in cash and an exclusive spot in Alchemist Accelerator.

For more details or to register, please visit .

Yammer () is a best-in-class Enterprise Social Network used by more than 200,000 organizations worldwide — including 85 percent of the Fortune 500 — to foster team collaboration, empower employees, and drive business transformation. Yammer-s freemium business model lets customers see the value of Yammer before upgrading to the premium offering. Founded in 2008, Yammer is now part of the Microsoft Office Division.

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