I'd like to be able to mark interesting nuget packages as my favourites. This would allow the site to alert me to new releases (either by visiting a page, or emailing me, or even an RSS feed).
Other interesting features would also be possible, such as an option to just show my favourites in the VS Manage NuGet Packages dialog. Or even an algorithm that can recommend other packages I might like based on what I have already marked as a favourite.
Love this idea. It's been on our roadmap for a loooong time. I still would like to see this in http://nuget.org/ proper, but until then, you can try http://nugetfeed.org/