Over on Comixology, from April 14 to April 16, they have posted all the issues of Zero Hour, including all the tie-ins and the O issues that they used to relaunch the universe for 99 cents each. Zero Hour actually was a pretty good crossover. I would definitely suggest checking out the Legion relaunch issues, and of course Starman is one of my all time favorite series.
Tags: Comixology, digital comics, Zero Hour
Source: DC Blog