ReadWriteWeb writes: "Semantic web applications are coming out of the woodwork, due to a combination of Semantic Web technologies and Web 2.0. A key element is that the apps try to determine the meaning of text and other data, and then create connections for users. Nova Spivack of Twine noted at the recent Web 2.0 Summit that data portability and connectibility are also crucial for these new semantic apps — i.e. using the Web as platform. This article profiles 10 Semantic Apps and looks at the approaches they are taking."