Twenty years ago today, Netscape’s shares began trading. To many the initial public offering of Netscape marked the beginning of the Internet age. It was certainly the first event that signified to the world outside of Silicon Valley how big the Internet could be. Much has changed since then but much remains that same. Netscape has largely disappeared. But technology companies, after the boom and bust that followed Netscape’s deal, are hot once again. These days it’s more about apps and smart phones than the Internet that Netscape opened for so many users two decades ago. And, unlike then, many of the hottest companies of the current tech boom are opting to stay private, and put off an IPO for as long as possible, ironically following the advice of Marc Andreessen, one of Netscape’s founders. Ten years ago, Fortune compiled an oral history of Netscape and its IPO. Many of the people involved in the deal are once again key figures in the current tech boom.