The Library has subscribed to Zotero institutional storage.
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Zotero users with an @weizmann.ac.il address associated with their Zotero accounts should now see the unlimited storage reflected in their storage settings, with a note that it's provided by Weizmann Institute of Science. If users registered with a different email address, they can add their @weizmann.ac.il address to their account at any time from their account settings on zotero.org.
Quick start guide: https://www.zotero.org/support/quick_start_guide#the_basics
Zotero video tutorials: https://www.zotero.org/support/screencast_tutorials