> But we do encourage (promote) an interface that forces > off-campus authentication to our Summon instance.
With an explanation that it's because of pirates! :-) https://auth.lib.unc.edu/ezproxy_auth.php?url=http://unc.summon.serialssolutions.com/search?s.q= > And one we would need to revisit if we looked to Summon (or some other > product) as a catalog+periodical literature hybrid. Right now we have > separate discovery layers That's a useful factor to add to the discussion, thanks. We use Summon for "everything", but I can imagine that the discussion about requiring authentication could go differently if it was only used for articles. I was pretty sure that I remembered seeing some research showing that authentication was a barrier, i.e. a certain proportion of users don't actually bother to continue. I did some brief-ish searches (taking the opportunity to compare Summon, EDS, Primo and Google), but the best I could come up with was this (an evidence-free statement): http://www.codinghorror.com/blog/2007/06/removing-the-login-barrier.html (I also found a medical paper [1] with a small study that appeared to agree.) David [1] Tjora, Tran & Faxvaag (2005). "Privacy vs Usability: A qualitative exploration of patients' experiences with secure internet communication with their general practitioner", Journal of Medical Internet Research 7:2.