Meet the Team

Doug Weaver
Founder & CEO
Over the past 19 years, Doug Weaver has worked with over 600 leading companies including Facebook, BuzzFeed, ESPN, Yahoo!, Apple, Twitter, Fox Sports, Refinery 29,, Acxiom, USA TODAY, CBS Digital Media, YuMe, The Wall Street Journal, NBC Universal, MediaMath and The New York Times. For these clients and many others, he’s trained thousands of Internet media and technology sellers through both public and private sales strategy workshops. In 1999, he received the first IAB Service Award for commitment and contribution to the industry; In 2011, ad:tech honored him with its Industry Achievement Award for lifetime service; and in 2016, 212 NYC presented Doug with its Thought Leadership Award.
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Tamara Clarke
Opportunity Manager
Tamara assists in the sales coordination, planning and sponsorship of Seller Forum, Upstream’s tri-yearly event in New York City, tailored for digital sales leaders and named one of the industry’s top ten conferences for digital marketing professionals. With a solid foundation in customer service, she manages new and existing opportunities and relationships with clients.
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Liza McCabe
Operations Manager
Liza facilitates the day-to-day business operations of Upstream, while providing logistical support for training workshops and the planning and execution of the tri-yearly Seller Forum events in New York City. With a background in marketing and advertising, with an emphasis on design and communication, she assists in marketing efforts, such as social media management and email distribution.
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Lisa Milgram
Content Director
Lisa works with Upstream Group to program and produce the Seller Forum, partnering with Doug and the Seller Forum Advisory Board to create content for each event. She has 15 years of experience in all facets of the events business with a specialized focus on editorial development. A decade of creating content for events at the intersection of technology and media has given Lisa a unique ability to translate complex industry issues into high-impact event experiences. Whether conferences for 5000+ attendees or intimate forums for C-Suite executives, Milgram has a proven track record of delivering programs with measurable results.
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