The Delaware law of advancement and indemnification for directors and officers is not for the fainthearted. Much of the statutory interpretation in the case law is counterintuitive. Each year the ABA Business and Corporate Litigation Committee publishes recent developments in the eponymous areas of the law in a two volume publication.
The chapter on the key cases around the country (most of which are in Delaware) regarding advancement and indemnification involving directors and officers was co-written by yours truly along with my colleagues Gary Lipkin and Aimee Czachorowski. Included are the most noteworthy cases from 2014 involving DGCL Section 145. Information about the publication is available at this link. (The 2016 edition is also available from the ABA.)