In case you missed it, the Economist Intelligence Unit (EIU) recently published a report which is well worth a read. It discusses the motivation for corporate citizenship, suggests how it can help improve the bottom line, and proposes that having a well-designed corporate citizenship program can be a competitive advantage.
The link to the free report is here: http://www.eiu.com/site_info.asp?info_name=corporate_citizenship&page=noads&rf=0