Source Book or Adventure Module

Is the concept of the adventure module, as promoted by TSR, dead? Killed by the trend of the source book by the young blood RPG publishers?<br /><br />What do you prefer, source book or adventure module?<br /><br />Are there other concepts? One pages? <br /><br />Could there be a hybrid of the source book and adventure module? Perhaps a more detailed setting brief and an adventure module?