Here's a nice course on improving your digital photography skills.
Three highly acclaimed professional photographers share 50 all-new fast, easy, and powerful camera tricks both professionals and creative amateurs can learn to use almost instantly.
This book explores using digital cameras, lighting, filters, and concepts to produce professional results with "wow!".
Its lavishly illustrated with stunning professional photos.
Companion Web site and CD-ROM are both packed with all images from the book as well as valuable utilities.
Here are the links:
Companion CD-ROM: http://tinyurl.com/9fhmf
P.S. If anyone has ebooks on film theory, film-making, film techniques, or essays/writings by Eisenstein, Pudovkin, Kuleshov, Stanislavski, etc., please post here or send me a PM.