Fortunately for developers Swing seems to be rising in popularity a lot. On Javaworld there are published articles on Swing, like this one on The Swing Cookbook, and on Dzone I found a weblog on Swing, or more specifically Java Desktop.
One of the reasons of the increasing popularity might by JSR 296, a standard for Swing. The standard is in development since 2006, but seems to be getting more attention lately. In a posting on JSR 296 and Swing suggests Swing might become obsolete - as Sun concerns- because of JavaFX. I don't think (hope) Swing will disappear any time soon. Sun has a new architect on JSR 296 since last year, although there's not that much progress on development or updates. On JSpring, a popular conference on Java in the Netherlands, there a session on JSR296, allthough Javapolis (now Devoxx) there was a talk on JSR-296 in 2006 already. I'll be curious what will be told in that session.