I've written a greasemonkey script that registers three more keyboard shortcuts:
- ] - Select the next hyperlink within the currently open item.
- [ - Select the previous hyperlink within the currently open item.
- \ - Open the hyperlink selected with [ and ].
I should also note that Google Reader also has the 'v' keyboard shortcut that lets you open the current item in a new window. So, these keyboard shortcuts can be considered the first derivative of 'v'.
Someone else wrote a similar script that takes a different UI approach that doesn't work for me. Plus I found it at near the end of writing this one. :)
Get Greasemonkey here before you install this new google reader navigation script.