http://dcu.blog.dccomics.com/the-new-52/
This Wednesday, DC Comics is starting a line-wide refresh/relaunch/reboot of their entire superhero line. Every single issue coming out in the month of September is a #1 issue; they're renumbering long running books like Action and Detective, and they're launching new books like Blackhawks and Static Shock.
If you've ever been interested in reading comics by DC, this is basically the most perfect time to start reading. Every series is being written with "new readers" in mind; this entire relaunch is designed to get more people reading comics and to expand the market.
Some books are getting major overhauls (Superman titles are being changed quite a bit) while other books are basically continuing from where the pre-September stuff left off (Batman, Green Lantern). But the basic idea is that all books are accessible for newbies.
Another thing DC is doing is publishing every book digitally on the same day the print version comes out. So if you don't want to buy comics at the store, you can get digital versions to read online (also on iPad and Android tablets).
Anyone gonna be jumping in? Justice League #1 drops this Wednesday. I already read a ton of DC books every month, so I'll be grabbing a lot of these books.