A reader e-mailed to point out that one can share one’s Google Reader shared items beyond the being linked as a “friend” and that the fact that Google Reader creates a static page that aggregates one’s shared items, as well as an RSS feed for those items.

Mine is here: http://www.google.com/reader/shared/01298209407236119517

One can find one’s one page and feed (so that other’s can subscribe to it without being a “friend”), go to “Settings” and then “Tags.”