Web 2.0 technologies can help share learning designs by providing a simple, flexible way to reference learning design resources through a URL without needing to build another repository. The Design for Learning programme explored sharing learning designs through a wiki linked to a social bookmarking site. However, challenges remain around semantic interoperability, representation of designs for different contexts and users, and motivation to share designs like media on sites like Flickr. Future work includes further tool development, design sharing events, and developing tagging practices and vocabularies to encourage sharing.