I just rediscovered TechBooksForFree. They have a pretty good selection of free online technical books including Eugene Blanchard's Introduction to Data Communications. As with many free resources, mileage may vary.
I'm always amazed by just how much web related information discover and then delete from memory.

Nice find. I snarfed a few books down to my ipaq. Don't forget you local libarary as another source for ebooks. King County Library has ebooks and audio books available for checkout/download and an online collection provided by books24x7.com.

Unfortunately, techbooksforfree.com are hosting an illegal old version of my book Intro to Data Communications. A new online version is available at

http://www.cadvision.com/blanchas/Intro2dcRev2/

Thanks

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