This page contains the links to get E-books for various subjects

J2EE BOOKS

http://ebookhelper.blogspot.com

 
http://www.gayanb.com/free_j2ee_books.php

http://oreilly.com/catalog/entjbeans3/workbooks/J2EE_workbook.z

http://www.theserverside.com/books/addisonwesley/ServletsJSP/index.tss

JSP BOOKS

http://www.theserverside.com/tt/books/addisonwesley/ServletsJSP/index.tss

 
http://www.theserverside.com/tt/books/addisonwesley/ServletsJSP/index.tss

http://www.onlinecomputerbooks.com

http://www.download.ir/archives/2007/09/sams_teach_yourself_javascript.php

J2EE Tutorial
j2ee books basic

http://wwww.tusc.com.au/tutorial/html/index.html

Although u will still have to understand some concepts of J2EE.
For that U can go to SUN's site or at IBM developer works (in particular) has some of the best technical atricles and tutorials I have come across.
Or J2EE Specs avilable from SUN's site are really good.

http://www.tusc.com.au/tutorial/html

XML E-books

Sams teach yourself book for xml
sams next book in 21 days
http://rapidshare.com/files/51393930/0072253576.zip
http://rapidshare.com/files/48623137/HTML___XHTML.rar

Hardware ebook

http://www.quepublishing.com/promotion/3046


http://www.quepublishing.com/promotion/3046