“Friendster ended up with three levels of V.P.’s, C.E.O.’s and board members who, although they had great résumés, they were not connected to the social networking concept and didn’t really use Friendster,” she wrote.

Mr. Doerr, at Kleiner Perkins, disputed this. He said that he visited the Friendster site at least once a day. “It’s certainly not fair to say we were out of touch when we were willing to commit millions of dollars to this market,” he said. “We understood the opportunity. The company didn’t seize that opportunity.”

But Mr. Siegelman, one of Mr. Doerr’s partners at Kleiner Perkins, said Mr. Abrams had a point. The original board had little feel for the product, said Mr. Siegelman, who attended most meetings and eventually replaced Mr. Doerr. But Mr. Siegelman also described Mr. Abrams as a founder in way over his head, which is why, in April 2004, only a few months after investing in the company, the board replaced him as chief executive.

“All of a sudden Jonathan had all these high-powered investors to please,” Mr. Siegelman said. “He had all this money in the bank, so there was all this pressure to hire people and get things done. Open up new territories: China, Japan, Germany. Add all these new features. Meantime, he took his eye off the ball.”

But the board also lost sight of the task at hand, according to Kent Lindstrom, an early investor in Friendster and one of its first employees. As Friendster became more popular, its overwhelmed Web site became slower. Things would become so bad that a Friendster Web page took as long as 40 seconds to download. Yet, from where Mr. Lindstrom sat, technical difficulties proved too pedestrian for a board of this pedigree. The performance problems would come up, but the board devoted most of its time to talking about potential competitors and new features, such as the possibility of adding Internet phone services, or so-called voice over Internet protocol, or VoIP, to the site.

THE stars would never sit back and say, ‘We really have to make this thing work,’ ” recalled Mr. Lindstrom, who is now president of Friendster. “They were talking about the next thing. Voice over Internet. Making Friendster work in different languages. Potential big advertising deals. Yet we didn’t solve the first basic problem: our site didn’t work.”

In retrospect, Mr. Lindstrom said, the company needed to devote all of its resources to fixing its technological problems. But such are the appetites of companies fixated on growing into multibillion-dollar behemoths. They seek to run even before they can walk.