I think it would be neat of you created a(n) RSS file(s) based on the New Nodes page. This way, not only could people create Netscape channels, but people can also add it to their own pages (personal portals, or whatever). Updating the file periodically to see the top X new items. Just a thought.
And so there is! Well, to extend on this...
How about allowing users to define their own RSS file based on the sections they choose. For example, I may be interested in Snippets and SoPW, so I can choose to see new nodes in these sections. Then, a custom RSS could be created for me to use. There would be a few ways to get this done, text files, or maybe generated dynamically by a CGI script. Just an extended thought..
As long as enough information is provided in the RSS, the DBD::RAM module can be used to fetch the data and then provide a DBI query against it (full SQL!) in short order.