This episode of '200: Tech Tales Found' dives into the dramatic story of CMGI, a company that transformed from a humble college mailing list business into a $41 billion dot-com era titan, only to collapse spectacularly when the internet bubble burst. Hosts Amanda and Jason explore how CMGI became synonymous with speculative excess during the late 1990s, riding the wave of irrational exuberance that defined the tech boom. Founded in 1968 as College Marketing Group, CMGI was reimagined under visionary David Wetherell, who pivoted the company toward digital innovation. Key moments include the development of one of the first web browsers, BookLink, which was sold to AOL for $70 million, fueling further expansion. With the launch of CMGI @Ventures, the company became a pioneering force in internet venture capital, investing in early successes like Lycos and GeoCities—both of which generated massive returns. At its peak, CMGI owned or influenced major players across the internet ecosystem, including AltaVista, uBid, and Engage Technologies, while even securing naming rights to the New England Patriots’ stadium. But behind the glittering headlines were unsustainable business models, reckless spending, and overreliance on speculation. When the market turned in 2000, CMGI’s stock plummeted nearly 90%, wiping out billions in value and devastating employees, investors, and everyday people who had bet their futures on the company's success. The hosts highlight the human toll of the crash—employees losing jobs and life savings, founders watching their dreams evaporate, and executives scrambling to salvage what remained. Wetherell, once hailed as the “Warren Buffett of the Internet,” saw his net worth drop from over $3 billion to just $36 million. The narrative also explores internal tensions, strategic missteps, and the broader cultural phenomenon of unchecked ambition during the dot-com era. As CMGI dismantled its empire piece by piece, selling off assets and shuttering ventures like iCast and 1stUp.com, it left behind a cautionary tale about the dangers of prioritizing growth over profitability. Today, the echoes of CMGI’s rise and fall remain relevant amid new waves of speculative frenzy around technologies like AI and cryptocurrency. This story serves as both a historical deep dive and a warning: no matter how revolutionary the technology or how meteoric the ascent, sustainable value must always anchor innovation, or risk repeating the past.