[infog]

here, i provide list of all ebooks providers and publishers, but none of them is free. However, there are many ebooks published on net/forums/blogs may taken from it.
so here is list:

http://www.24x7books.com/books24x7.asp
http://my.safaribooksonline.com/alltitles
http://www.coursesmart.com/disciplines?category
http://www.knovel.com/web/portal/browse
http://www.crcnetbase.com/products.asp
http://www.eblib.com/
http://myilibrary.com/
http://www.dawsonera.com/
http://shop.ebrary.com/
http://www.sciencedirect.com/
http://www3.interscience.wiley.com
http://www.informaworld.com/smpp/home~db=all
http://www.springerlink.com/home/main.mpx
http://www.rsc.org/Publishing/index.asp
http://ebooks.whsmith.co.uk
http://www.ebookstore.tandf.co.uk/html/index.asp
http://www.netlibrary.com/
https://ebooks.primisonline.com/eBookstore/
http://gateway.ovid.com
http://www.gale.cengage.com/
http://www.igpublish.com/
http://ebooks.worldscinet.com/
http://www.igpublicsh.com/
http://content.karg[er.com/services/ebooks.asp
http://www.cabi.org/cabebooks/

may be some knows access/login and some not. but we thankful to those who rip and share with ppl.

cheers. :surrender: