Our friends ar EUC report that the 5th chapter of Vortex, book 6 in the Fate of the Jedi series, is online as a preview. This can be viewed one of two ways:
1. If you got a promotional Del Rey card with a code through the 2010 Hyperspace membership kit, or at CV, you can view the chapter at StarWarsBookExtras.com.
2. If you don't have the code, click here for a PDF version.