From the Book Industry Study Group:
The Book Industry Study Group (BISG) announced today the publication of a new Policy Statement detailing best practices for assigning ISBNs to digital products. Developed over the past 18 months within BISG’s Identification Committee, BISG Policy Statement POL-1101 addresses the critical need to reduce product identification confusion in the market place in order to provide the best possible consumer-level purchasing experience.
BISG encourages all member companies and other industry stakeholders to download the Policy Statement online and work toward adopting the suggested guidelines as soon as practical, with a target for new product introductions of no later than March 2012. The best practices are applicable to content intended for distribution to the general public in North America, but could be applied elsewhere as well.