This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I'm not aware of a mailing list as such, but you could use any of the "web page watch" services to have a look at the download page (.e.g http://tomcat.apache.org/download-55.cgi). Those would change only if a new release is made available.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com