Please add any electronics-related links you think useful, I'll try to fit them into categories as below for ease of use, so don't be upset if your post disappears. And please PM me about any dead links, curse of the internet. Top Tip : Google will find a datasheet or info far faster than wading through a site or waiting for an answer. And check Google Groups for user opinion on stuff, it's a goldmine. General Principles : Ohm's Law, how stuff works in theory if not in practice... Guide to Electronics 101 - aka Electronics for the Modder. A forum thread covering some popular modding parts, how to use them. LCD's and VFD's - The Ultimate FAQ - includes laptop screens. The Cheese Guide. Component data : Where to find datasheets, IC pin-outs, manufacturer's sites, picking the right part... Where to buy parts online UK & Ireland USA & Canada Continental Europe Africa, Asia, Australasia, ROW. PC Connectors & Cables : Pin-outs, wiring colours, part names & numbers... Schematic & PCB Design Software : Mainly freeware... includes circuit simulation, stripboard design. Construction Techniques : Making PCBs by iron-on, UV and other methods; how to solder, from basic to SMD components; prototyping, etc... PSUs : Official specs; repair & modding guides Fan Control : Information and Circuits, including the Bit-Tech guides... Interfacing : Using ports (serial, parallel, usb, etc); remote control hardware & software... LEDs : Teh blue-eyed monsters... how to use, resistor calculation, what to buy... PICs & other µPC : How to use, what you need, where to buy... More Schematic Collections : Mainly non-computer related - audio, gadgets, digital & analogue. Technical Books : Recommended reading in hard copy. Popular Projects: Threads covering stuff Bit-Tech members have built. Clocks : Turbokeu's PIC/7seg, SteveyG's PIC/discrete LEDs Touch-sensitive switches: gongzero's QT110 guide More Links : Bit-Tech mods : The full list. ePanorama.net : Tomi Engdahl's Electronics Info Pages Car Electronics : the12volt.com, providing mobile electronics installers with an on-line resource for technical information as well as tips and tricks of the trade.