Ebrary is an online digital library of more than 2,00,00 full text scholarly ebooks. Ebrary is a paid site but majority of the titles are available online for free.
Ebrary subscribers gets access to additional features like download full book, mark pages, create notes etc. and can also share/email their notes.
Non-subscribers on the other hand can view the book and read page-wise.
For more information and surfing visit ebrary.