Going back through the archives of the Notes from the Underground blog, there's some pretty good stuff in there. Especially if you're not too familiar with much of the punk, hardcore and DIY indie stuff that's going on at the moment.

http://www.nme.com/blog/index.php?blog=134

some of the highlights
Mudhoney
http://www.nme.com/blog/index.php?blog=134&title=title_343&more=1&c=1&tb=1&pb=1

Fake Problems (great guys)
http://www.nme.com/blog/index.php?blog=134&title=notes_from_the_underground_free_exclusiv_1&more=1&c=1&tb=1&pb=1

Meet Me in St.Louis album for free download!
http://www.nme.com/blog/index.php?blog=134&title=notes_from_the_underground_happy_meet_me&more=1&c=1&tb=1&pb=1

Above Them
http://www.nme.com/blog/index.php?blog=134&title=notes_from_the_underground_free_above_th&more=1&c=1&tb=1&pb=1

Pissed Jeans
http://www.nme.com/blog/index.php?blog=134&title=free_pissed_jeans_live_mp3&more=1&c=1&tb=1&pb=1

Calvinball (i'm in this video)
http://www.nme.com/blog/index.php?blog=134&title=free_calvinball_mp3&more=1&c=1&tb=1&pb=1

Top Five punks gone country/folk/acoustic
http://www.nme.com/blog/index.php?blog=134&title=five_of_the_finest_punk_troubadours&more=1&c=1&tb=1&pb=1

Get Up Kids
http://www.nme.com/blog/index.php?blog=134&title=did_the_get_up_kids_really_invent_emo&more=1&c=1&tb=1&pb=1

Brighton scene
http://www.nme.com/blog/index.php?blog=134&title=brighton_punk_rock_city_scene_focus_free&more=1&c=1&tb=1&pb=1

Alex Holy Roar column
http://www.nme.com/blog/index.php?blog=134&title=why_hardcore_will_save_the_world_by_alex&more=1&c=1&tb=1&pb=1

Epitaph greatest hits spotify playlist
http://www.nme.com/blog/index.php?blog=134&title=epitaph_joins_spotify_here_s_a_playlist_&more=1&c=1&tb=1&pb=1

Apologies I Have None (you can see me in the photo)
http://www.nme.com/blog/index.php?blog=134&title=apologies_i_have_none_free_very_shouty_m&more=1&c=1&tb=1&pb=1

Green Day are sellouts
http://www.nme.com/blog/index.php?blog=134&title=green_day_are_back_yawn_yawn_yawn&more=1&c=1&tb=1&pb=1

Fall of Efrafa (incredible band, a bit overserious but some stunning music)
http://www.nme.com/blog/index.php?blog=134&title=fall_of_efrafa_a_band_to_believe_in&more=1&c=1&tb=1&pb=1

Throats
http://www.nme.com/blog/index.php?blog=134&title=exclusive_free_throats_mp3&more=1&c=1&tb=1&pb=1

Propagandhi
http://www.nme.com/blog/index.php?blog=134&title=free_propagandhi_mp3s&more=1&c=1&tb=1&pb=1

and lots of coverage, tour diaries and takeover stuff from Frank Turner, Propagandhi, Lawrence Arms and others