“The University of California is joining Google Inc.’s book-scanning project, throwing the weight of another 100 academic libraries behind an ambitious venture that’s under legal attack for alleged copyright infringement. The deal to be announced Wednesday covers all the libraries in UC’s 10-campus system, marking the biggest expansion of Google’s effort to convert millions of library books into digital form since a group of authors and publishers sued last fall to derail a project launched 20 months ago.”