The prenumbered label downloads will continue to be available two ways: though the Store, or free to members with wings (which are available for a small fee in the store.) We wish we could continue to offer those for free, but the escalation of costs to keep the site running mean we had to make some adjustments. We would rather be able to offer the prenumbered labels this way than have to revamp our philosophy of offering the basic elements of BookCrossing without cost. While prenumbered labels are a great help to many people, they are not essential to actually set a book free. (And for those of you worried about our OBCZs, we do gift them with free wings in thanks for helping support the site.)
Thank you for understanding that times and needs change. We hope that should finances allow, we can return downloadable prenumbered labels to the site at the basic level.