Actually the X-Men "era" that just concluded with Avengers Vs X-Men was kicked off by Grant Morrison's New X-Men. Joss's Astonishing X-Men followed it, and then so forth.
Last decade of Spider-Man: The end of JMS's Amazing Spider-Man run, One More Day/Brand New Day. Big Time (also a jumping on point) (start of Slott's current run) and now Superior Spider-Man. Although yeah I suppose the jumping on point for Spider-Man would indeed be Brand New Day.
Mark Waid's Daredevil will be branded with the Marvel Now label at the start of issue 23, but that's just a branding. Nothing will change with the book. I also would highly recommend it.