Ebooks.com - My other alternative

I've also placed an order at ebooks.com. I downloaded a copy of the ebook, and the nice thing about it, is that I can also access it through the Internet - so anywhere I'll be, I can also read it.

With ebooks.com, I also had to activate my adobe reader. I think this is for security purposes - I can only read the ebook at my computer - nowhere else.