Eh, this gathers a bunch of "best of" lists and collects them all in one place...

Non fiction, fiction and poetry included

Not necessarily published in 2011

Not books about libraries, I promise you! This is a major book review journal, and they see most of what comes out in a year.

Joshua Kim blogs about technology and learning over at Inside Higher Ed. This is his list for 2011 (most are available at the WSU Libraries; all via Summit).

The people behind Brain Pickings are excellent curators.

This is a *very* well-curated list of lists.

This is a great compilation of many, many, many 2012 best book lists.

(from the American Library Association (ALA) Young Adult Library Services Association (YALSA) - an annual list.