Moodle is a learning management system (LMS), think of it as a web-based classroom environment. Features include quizzes, discussion forums, peer-review and document sharing.
In 2008, Ian Barrow published a book on Surveying and Mapping in Colonial Sri Lanka (Oxford University Press). It's the first in-depth account and assessment of the colonial survey department during the nineteenth century. My research for the book and developing interest in Sri Lanka (formerly known as Ceylon) has prompted me to offer a course on Sri Lankan history in Spring 2010. My book will probably be one of the texts.