There are many websites that offer ebooks, just look at the results of [url="http://www.google.com.mt/search?hl=mt&q=ebooks&meta="]this search[/url]. Some of the websites offer ebooks at a price, while others offer them for free.
[url="http://www.questia.com/"]Questia.com[/url] has lots of ebooks, and is great for academic research, especially if you haven't got access to a public library.
questia really s*cks! too expensive for the c*ap they have online. Sure if you wanna get a GED its enough for you but don't use it if you are really researching something.