BlockBuster is offering all current rental service subscribers the opportunity to enjoy a two week free trial with their BlockBuster Online service.  This is an option for those who want the convenience of having the movies they want to see delivered to them, and if they want a new movie right now, it is as easy as driving to the neighborhood blockbuster to exchange the movie that came in the mail at no extra cost.  This is a huge advantage over any other online renting service.  BlockBuster gives you the option, whereas online only rental companies basically force you to wait to receive the next movie on your list via the postal system.  Subscribing to BlockBuster Online provides a more robust rental experience because of the option to go to a local store and not being subject to the limited availability of a certain title at a store.