25. Universal Bootloader
Universal Bootloader project provides firmware with full source code under GPL. Many CPU architectures are supported: PowerPC(MPC5xx, MPC8xx, MPC82xx, MPC7xx, MPC74xx, 4xx), ARM(ARM7, ARM9, StrongARM, Xscale), MIPS(4Kc,5Kc), x86, ...
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26. 一個教程，非常有意思，利用動畫來演示AVR單片機內部結構。
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27. Atmel AVR Code Examples
PID Motor Controller,GPS信息處理。USB Code，AVR Bootloaders，AVR with Ethernet Examples 等等。
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28. Electronic circuits based on AVR micros
MIDI generator ,Analog inputs for ATtiny26 ,Acceleration meter for cars,2 channel RF remote control at 418 MHz,SMS remote control v2.0,Electronic safety-lock with telecard as key,AVR In-System Programmer,Visual Basic & AVR RS232 interface,AVR composite PAL colour bar generator, Ultra low-cost programmer for AT90Sxxxx family,IgorPlug-USB (AVR)
Universal USB interface,LCD 2x16 characters & 4x4 keypad example,Connect RS232 modem to E-10G, Programable LCD counter with memory backup,128x64 LCD Driver for AT90S2313,RCEN fuse bit programmer
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29. 
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30. WinAVR (AVR GCC)
WinAVR (pronounced "whenever") is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. It includes the GNU GCC compiler for C and C++. 

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31. AVaRICE
AVaRICE is a program for interfacing the Atmel JTAG ICE to GDB to allow users to debug their embedded AVR target.
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32. 一些非常有用的GNU開發工具.資源,推薦

AVR Downloader/UploaDEr 
AVR USB 
an AVR simulator 
AVR In-System Programmer 
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33. 
非常好的AVR-Tutorial,而且非常好的AVR-GCC-Tutorial
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34. P COLTRANE
DIY Electronics, DIY PIC Projects, DIY AVR Projects, DIY X86 Projects, DIY Basic Stamp Projects - Tutorials, Schematics and Code
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35. AVR Libc Home Page
AVR Libc is a Free Software project whose goal is to provide a high quality C library for use with GCC on Atmel AVR microcontrollers.
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36. SmallC for AVR
SmallC for AVR has been extensively re-written to make it more efficient. Typical code space savings of over 50% on version 1 have been achieved. A complete User Manual is now available that puts in one place the details previously scattered throughout my old web pages. It includes many examples and code snippets on configuring and using the various AVR hardware.
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37. PIC,AVR,ARM,MSP430開發DIY
該網站提供很多的PIC,AVR,ARM,MSP430的開發資料，特別適合自己制作開發系統，它的ARM開發(利用LPC21**系列)是非常號的資料。推薦。
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38. AVR 中文數據手冊已經可以獲得了
ATMEL 正在為 AVR 微控制器的用戶提供進一步的支持，那就是為他們提供產品的簡體中文數據手冊。這個表將不斷地得到拓展。在瀏覽如下的產品卡時您可以找到這些數據手冊：
ATmega16, ATmega16L, ATmega48, ATmega88, ATmega168, ATmega169, ATmega169V, ATmega32, ATmega32L, ATmega64, ATmega64L, ATmega8515, ATmega8535, ATmega8535L, ATtiny13, ATti

SkyEye Project
SkyEye是一個開源軟件（opensource software）項目，中文名字是“天目”。SkyEye的目標是在通用的Linux和Windows平臺實現一個模擬集成開發環境，模擬基于ARM的嵌入式計算機系統；可在SkyEye上運行ARM Linux,uclinux以及uC/OS-II等多種嵌入式操作系統，并對它們進行源碼級的分析和測試
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一個非常好的德國個人網站,有些電子制作.比較經典的就是
1,利用AVR單片機做的WEB服務器.RTL8019芯片.
2,利用CPLD產生視頻信號VGA.
3,μClinux - mini Linux for the Philips's ARM LPC2294 
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PIC,AVR,ARM,MSP430開發DIY
該網站提供很多的PIC,AVR,ARM,MSP430的開發資料，特別適合自己制作開發系統，它的ARM開發(利用LPC21**系列)是非常號的資料。推薦。
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Build Your Own Microcontroller Projects
This page provides schematic and software for hobbyists to practice "learn by doing", build a simple microcontroller projects at home. For those who would like to contribute projects, please prepare HTML files whatever you like to see but keep all files small and informative. I shall provide for others. DIY的好地方,強烈推薦.
~kswichit/ - 外文

GNU ARM? toolchain for Cygwin, Linux and MacOS .推薦
這里是它的實用資源 
討論組 
文件下載 
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10. ARMuC Wiki.大量的開發資料,強烈推薦
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