It's been there for a while, but I just found out about it yesterday. There's a free ebook from InfoQ called "Domain Driven Design Quickly", which I think is a great introduction to DDD. It talks about the main concepts of DDD and presents them in a very focused yet easy and enjoyable-to-read way, with little or no actual code in one particular technology.
The book is a light read and, at 106 pages, it's packed with great info and insight about modelling, communication within teams, organizing your business logic etc. Even if you won't do DDD, I think the book is still well worth reading.
http://www.infoq.com/minibooks/domain-driven-design-quickly