Ars Technica has retrospective on the Oracle v. Google trial, and the copyrightabilty of APIs (Application Programming Interfaces).

Ars retrospective, here. Wikipedia on APIs, here. Groklaw has excellent live blogging coverage of the trial as it unfolded. The federal district court opinion is available online from Groklaw. The first Groklaw link will soon scroll far into older posts. The specific link to the Oracle v. Google opinion should remain stable.