BeebEm for Mac	I must give thanks to Jon Welch who has done an excellent job of porting BeebEm to run natively in Mac OS. Its made my revisiting of old BBC classics far more pleasant and his addition of QuickTime recording to the emulator has made video production an absolute breeze (previously I was muddling round with third party screen video capture tools and then editing them). If you have a Mac and are even vaguely interested in the BBC then go here and download the emulator.
BBC Games Archive	Excellent site with loads of information on BBC games including descriptions of games, downloads, interviews with respected BBC developers, high scores and more.
8bs	Huge resource containing public domain downloads, information on the BBC range and photos of weird and wonderfull BBC bits.
BeebMaster	An excellent site on the 8-bit Acorn range. Some superbly detailed and useful advice on setting up an Econet. Also sells Master's and other bits and pieces which I can recommend as great friendly service - my current Master came from there.
Acorn Arcade	Useful site for Acorn gaming. Focussed on Acorns RISC based machines but hosts a fantastic site on Exile.
Retro Gamer	Retro Gamer magazine has risen like a zombie from the grave under new stewardship. It can be found online here and has an excellent retro forum.
Retro Remakes	If your interested in old classics remade on modern hardware then this is the number one site on the net.
Lemon 64	A frankly amazing site and one of my favourites on the web. A huge database of C64 games, advertisements, game covers, music and a friendly community. An absolute must visit.
Gamebase 64	A cross linked database of just about every C64 game ever released. Want to know who published something and when? This is the place to find out.
The Def Guide to Zzap!64	An archive of the old Commodore 64 magazine Zzap!64. Getting more complete each week.

Not so much links as a few thank you's.

The friendly folk around the NTSC-UK forums who can always be relied on to help with answers to retro related questions.

Jon Welch for the absolutely excellent port of BeebEm to the Mac (ok so I've thanked him once already but this is one of my most used pieces of software). Thanks also to the original author(s).

Bill Bertram who has been taking excellent quality photographs of old computers and posting them on Wikipedia under a free licence. Both the explicitly acknowledged photo of the Commodore 64 in the hardware section and the smaller "icon" came from here.