Users of this website might also like to visit Free Newspaper DVD's for up to date information on latest releases, there is also some chronological information about past releases.
The Paul Bines Online Experience also offers users some chronological information about releases. It also covers TV shows and music CD's.
The BBC news site have some interesting articles about the promo disc business:
The value of free - This talks about the devaluation of culture as a result of free promotional discs!
How can papers afford to give away DVDs? - This argues that newspapers can't continue to give away free discs if they want to remain competitive, this has actually happened as the practice has now largely stopped.
Universal loses promo CD battle - Interesting article about an eBay trader who was taken to court by Universal Music Group for selling promotional CD's. Universal lost the case.