The Star Wars Databank is the official Star Wars site's reference on characters, locations and technology. Entries are checked when they are posted but may not be kept up to date. When they are up to date the movie sections are "G-Canon" and the Expanded Universe sections are "C-Canon".
Each article progresses by describing the subject's incarnation in the movies if applicable, and moving on to Expanded Universe material; finally, there is often a "Behind the Scenes" section which describes the subject's real-world history, inspiration, and production.