looks like the URL got messed up: here it is again:

www dot google dot com / reader / public / atom / user / / label /

Here’s an example for my data viz bundle
http://www.google.com/reader/public/atom/user/11364282433102044075/label/theme.data

In reader, create a folder and add all the feeds you wish to include in your bundle. Then go to settings and share that folder.

For someone to subscribe they just have to be supplied with the right link, which is of the form:

http://www.google.com/reader/public/atom/user//label/

You can find your user number in your shared items link.

Cheers,
Tim