Treeki's new old file dump. Here's everything on it that could possibly be worth something:

ROM Hacking-
Original Nitro Explorer: 1.0 1.1 1.2

Nitro Explorer 2: 2a 2b

Crappy NSMB Header Viewer

NARC Explorer

Super Mario Land 2 Map Editor: 1.0 1.1

NSMB Editor 4: 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 [Outdated!]

NSMB Editor 5: I'm not working on this any more, it's now maintained by Dirbaio at NSMBHD. Check that out for the latest versions :p

Bulk IPS Patcher

Crappy Outdated NSMB Hacking Docs from 2007: (don't use them) level format cameras/views entrances

Updated but unfinished docs from 2009

List of NSMB's sprites and the associated sprite data (unfinished) [OUTDATED, check the NSMB hacking forum for a stickied thread with a better list]

Furcadia Stuff-
Link Browser Fixes
Artex's DS Variable Counter with array support

Last updated 29th November 2009.