Daredevil became a Marvel Now book at issue 22 which was a Daredevil/Spectacular Spider-Man team up issue.
Hawkeye became one at 6, which was a stand alone story i believe
Venom at 31, i think that's when he moved to Philly
Scarlet Spider at 13, started a new storyline
Wolverine and the X-Men at 19 with a stand alone story...
Captain Marvel at 9, started a new storyline that fed into the Enemy Within Crossover
Hulk became Red She-Hulk at 58 for Marvel Now
Journey INto Mystery changed leads from Loki to Sif at 646 and started a new storyline
Avengers Assemble became Marvel now at issue 9 with a new writer and storyline.
Gambit, Astonishing X-Men and X-Factor are the only books currently published right now i believe that aren't Marvel Now books, but all are cancelled or will be ending. but rumors are the last two will be re launched in the fall.