The Web 2.0 Expo San Francisco 2008, which runs April 22 through April 25 comes at an inflection point in this rapidly growing arena. Yahoo (NSDQ: YHOO), one of the major players in the Web 2.0 space, stands on the brink of being acquired by Microsoft (NSDQ: MSFT). Meanwhile, the U.S. economy is sluggish, which limits the capital available to Web 2.0 
Nevertheless, the conceptual underpinnings of Web 2.0, the Web as a platform, have proven to be sound. It might even be fair to say that Web 2.0 has won. Amazon (NSDQ: AMZN), Google (NSDQ: GOOG), Microsoft, and Yahoo are busy building upon the Web as a platform, along with thousands of startups and other large companies like Adobe, IBM, Oracle, and Sun.