Weekend Reading: iPad International, eBook Explosion, and Shanda Stats

We are headed out for a long weekend, but here are some eBook headlines to keep you busy over the three-day holiday.

The Apple iPad launched internationally and four major UK publishers struck deals for iBookstore.

eBook sales jumped more than 184 percent in March.

Kindle users eagerly awaited a software update.

In the video embedded above, the CEO of the online reading site Shanda Literature counted 43 million registered users in a presentation.

Garrison Keillor worried that ‘publishing is about to slide into the sea.’

Despite