I'm a lazy citer, but I certainly want to try to share good resources as well as credit the folks who richly deserve to have their thoughts separated from my mangled ones.
Randy Robertshaw's presentation at NELA ITS certainly made me revisit marketing. Though he cited Crossing the Chasm (Moore) with frequency and Diffusion of Innovations (Rogers and Rogers) in a little less of a limelight, it was the latter that had more of an impact on me. (The former is redundant and it's on marketing with a heavy emphasis on *blech* sales.) Save yourselves a little boredom (okay a great volume of boredom) and opt for the condensed malaise of Ryan, Bryce, and Gross, Neal C. "The Diffusion of Hybrid Seed Corn in Two Iowa Communities," Rural Sociology, March, 1943, 8, 15-24. Wes Hamilton's workshop was also riveting in its explanation of the flavours of Linux.
While the Five Laws of Library Science have influenced me no end, I'd advocate for a sneak peek at Ranganathan's Library Administration on slow desk days.
Stephen Hedges' stuff (http://www.kohadocs.org/koha_diary.html), though not necessarily in this form at the time I joined the project, was instrumental in my understanding of the tickings of things. Steven F. Baljkas is a wonder for really showing my the road in terms of cataloguing; I learnt my poor trade from Bonnie Dede, but he was kind enough to answer skillions of "So what does this do again?" queries. Dr. Donna A Dietz was just as helpful with a barrage of maths questions. There are others in that soup of query answering, too, but I'm loathe to name more names lest they be incriminated.
Obviously, nothing happens without Sanction of Those Who Are Release Managers, Them Being Chris Cormack, The Great Paul Poulain, and Josh Ferraro.
Images of Organisation by Gareth Morgan is another hulking behemoth that's truly worthwhile.
Steven Johnson's Emergence:The Connected Lives of Ants, Brains, Cities, and Software is brilliant, but no one save me cares.
Read Slashdot. Really. http://slashdot.org/
While you're at it, read First Monday. (http://www.uic.edu/htbin/cgiwrap/bin/ojs/index.php/fm/) In particular, read the article on Pervasive Fun by Luthiger and Jungwirth. (http://www.firstmonday.org/issues/issue12_1/luthiger/) Also neat but slightly older (http://www.firstmonday.org/Issues/issue7_6/stalder/) A schoolie of mine tipped me off to it, and I've read it fairly regularly since and they've been picked up by UIC since.
Code4Lib is new and partly edited by another schoolie of mine (*shameless self promotion*) http://journal.code4lib.org/issues/issue1
Michael Twidale's Over the Shoulder Learning Principles are in the back of my mind when I write documentation that attempts to not also serve as Lunesta. (http://people.lis.uiuc.edu/~twidale/research/otsl/intro.html)