DiGiTronica Tutorial Links

1. Online course on Embedded Systems
2. Good info on variety of latest Technologies
3. Tutorials by Mr William Green from Drexel University. Some of the topics covered are PCB design, SMD, GPS, Fuzzy Controller.
4. This site is your source for hundreds of practical articles, tips, papers and resources about developing embedded systems. http://www.ganssle.co
5. Serial Communication
6. Free info by Berkeley Design Technology, Inc. Info includes mainly DSP related information.
7. C Tutorials:This site provides the opportunity to learn basic control and embedded system concepts while taking advantage of the low cost and convenience of using a PC as a platform.
8. Free Ebook: First Steps with Embedded Systems
9. What a Microcontroller Bootloader Is and How It Works?
10. Maxim: Over 2000 application notes and technical articles written by engineers, for engineers.
11. MATLAB Tutorial Videos
12. Embedded C basic Tutorial: While programming microcontrollers in C most of the time we have to deal with registers. Most common tasks are setting and clearing bits in a register and check whether a bit is 0 or 1 in a given register. Mr.Avinash Gupta has nicely presented these concepts. 
13. PIC Tutorials 
14. SMT Components 
15. Eagle Schematic Tutorial

8051 TUTORIALS

1. Edsim51 8051 Tutorial
2. Architecture and programming of 8051 MCU
3. 8051 Tutorial
4. 8051 and HyperTerminal