hardware design engineer - interfaces list

As a hardware design engineer, till now I have interfaced following items and I must learn all of them again:

1. UART
2. RS232
3. RS485
4. RS422
5. USB
6. Ethernet
7. GSM SIM
8. SDRAM
9. DDR 3
10. Parallel Nor Flash
11. Nand Flash
12. SPI Nor Flash
13. EEPROM
14. Temperature Sensor IC
15. External Crystal
16. Decoupling capacitors
17. High sped digital lines routing
18. mPCIe interface
19. Zigbee
20. GSM
21. FPGA
22. Slave FIFO interface
23. Pullups and pull down resistors
24. Stitching capacitors
25. PCB design
26. Analog and digital ground planes
27. Terminations
28. RC delay for reset Pins and IO pins
29. ESD protection
30. Reset switch interface
31. Schematics presentation - Pur cosmetics
32. Capacitors
33. Resistors
34. Mosfets
35. LEDs
36. Push to on Push to off circuit
37. Choosing ADC
38. ADC interface
39. DAC interface
40. SPI to UART IC
41. SPI interface
42. I2C interface
43. Three wire interface
44. Two wire interface
45. EMI precautions for digital interfaces
46. Booting of Blackfin Processor
47. eMMC interface
48. Open collector/Open drain
49. Series RLC Circuit
50. Routing clock lines
51. list will be updated..