Elsevier has released "Unleashing the Power of Academic Sharing."
Here's an excerpt:
Elsevier's updated sharing and hosting policies explain how articles published with Elsevier may be shared and made available. These provide a more clear and consistent framework that is aligned with the rest of the publishing industry, and which is based on feedback from our authors and institutional partners. While we know the policy changes will not go as far as some would like, we believe they strike an appropriate balance between the rights and responsibilities of sharing.