BOOB's Developer Docs tons of good stuff, including,
NetBSD Quick-Setup Guide, pdfs for the dreamcast broadband adaptor RTL8139 chip, a Connexant/Rockwell pdf relevant for the Dreamcast modem, Maple Bus patent information, Making Games For The Dreamcast Using Standard GNU Tools, Hitachi SH7750 Hardware Manual, Getting Started With DC Development using Win32, Building a Win32 hosted sh4-crosscompiler using GCC, Building a DC-PC Serial Cable (using a NGPC-DC cable), Building a DC-PC Serial Cable (using SVideo or VGA/RGB/SCART cables), How to alter a DC to read CD-RWs, Hexing the Utopia Boot Disc, DC GFX/Video Register, Dreamcast Memory Map, Optimizing Dreamcast Microsoft Direct3D Performance (under WinCE for Dreamcast), Hitachi SH7750 Programming Manual, IP.BIN header information, Dreamcast Portal Techniques, Accessing PowerVR 2DC Features Under WinCE... http://www.boob.co.uk/devdocs.html
GameFAQs DC Hardware FAQs it has more than hardware, including three passport faqs, an internet troubleshooting guide, a cheat device hacking guide that looks pretty good, and other stuff... http://www.gamefaqs.com/console/dreamcast/game/22940.html
guides to accessing the internet via email a whole bunch of stuff you did not know you could do with your dreamcast... http://groups.yahoo.com/group/DreamcastBrowsers/message/5671
www4mail- Web for Mail a site, not a guide, but, it is sort of a simpler way of doing some of the things in the 'web via email' guides... http://www4mail.org/
BDEAD LINKS GO HERE this is the dead links folder... IF YOU ARE A MOD and find a dead link, click on "cut", then go to the dead links folder and click on "paste" to add it there... IF YOU ARE NOT A MOD, please report the dead link so the mods can deal with it... http://tinyurl.com/4bvz