i got a lovely request from someone wanting my permission to use an image from an article i wrote in her upcoming course. i checked the transfer of copyright form i signed with the publisher and confirmed that i had given the publisher the rights to the published version of that article. darn. but, wait! i had reserved my rights to post the accepted authors manuscript in my institution’s repository. a minute later i had uploaded that document and responded to the person that i couldn’t grant permission to use the published version (and gave her contact info for the publisher, if she needed a shiny copy) but that i could grant permission to link to my version at the USC Institutional Repository. sharing for educational purposes is a good thing, and i’m happy my institution has a mechanism in place to help me do this.