DIY Sound Card
http://www.electronics-lab.com/projects/pc/026/index.html
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http://www.sharkoon.com/html/produkte...rk/usb_lanport_100/index_en.html?id=1
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http://web.mac.com/mr.pirate/SpikenzieLabs/USB_to_Serial.html
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http://eol.init1.nl/content/view/22/32
USB Interface with USBN960x chipset (ip over usb)
http://usbn2mc.berlios.de
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http://www.xs4all.nl/~dicks/avr/usbtiny
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http://diy.elektroda.eu/programator-usbtiny-mkii-slim/?lang=en
reverse engenering
http://vusb-analyzer.sourceforge.net/tutorial.html