If you've recommended some playlists through Playr, they'll show up on your Storage page (once logged in), and on your Flickr contacts' Recommendations pages.
At the bottom of your Storage page there's now an option to make these recommendations public via an RSS feed, rather than just shown to your Flickr contacts. After ticking the checkbox and pressing 'Set', a 'Public RSS feed' link should appear, which you can give to other people to let them subscribe to your playlist recommendations. Here's mine.
Splice this in with your WebJay feeds recommended via del.icio.us too, if you like.