As of December, Google eBooks also supports offline reading in the Google Chrome browser.

BBC: Free e-books provide unlimited holiday reading

Several hundred thousand titles under copyright are in Google eBooks, and for sale.

FORBES: Google eBooks Open for Business

In the first month of the Kobo partnership (Oct. last year), independent bookstores sold more ebooks than in the entire two years working with Google.

FORBES: How Canadian Upstart Kobo Kicked Google's Butt When It Comes to Ebooks

Email campaigns, events, blogging, tweeting, PR, ebooks, white papers, apps, banner ads, Google Ad Words, social media outreach, search engine optimization.

FORBES: How Real-Time Marketing Technology Can Transform Your Business