Here's a selection of articles and blog posts from the past week that might be of interest. Feel free to add other articles in the comments.
A Guide to Publishing in the Library Ebook Market
via The Digital Shift
Book Apps Aren't Going to Replace Children's Books, Part 1
via Small World Press
Are Ebooks Hitting a Plateau?
via Sites and Soundbytes
At San Francisco State Library, A Robot Will Happy to Find That Book For You
via The New York Times
Overdrive to Distribute Harry Potter Ebooks
via Library Journal
A Look into the Digital Lives of Teens
Necessary Evil? Random House Triples Prices of Library Ebooks
via Tech Crunch
The Twitteraholic's Ultimate Guide to Tweets, Hashtags, and All Things Twitter
via The Edublogger