Okay. Just wanted to specify because I feel that you might call me out if they formed before 2000 but are still on going past 2000.
The All-American Rejects
Fall Out Boy
JET
My Chemical Romance
Paramore
Angels & Airwaves
The Academy Is
Madina Lake and Saosin are coming out with their second album this year though.
Also a few bands I know did form in the late 90's but did not release an album til the 0's. Although if an EP counts as an album.
Also those bands I consider punk rock and pop punk. I don't like to get rock, hard rock, grunge, metal, heavy metal, and etc. get mixed in with punk, pop, and punk rock.
But yeah those bands I listed are pretty good and they are pop punk/punk rock and formed in the 0's.