EBOOK LINKS

http://www.programmersheaven.com/
http://docs.online.bg/
http://oreilly.com/openbook/
http://onlinebooks.library.upenn.edu/
Cryptography and Security-
http://people.csail.mit.edu/rivest/crypto-security.html
http://www.cacr.math.uwaterloo.ca/hac/
UNIX:
http://www.ucs.ed.ac.uk/~unixhelp/index.html
http://www.uwsg.indiana.edu/usail/
pearl
http://www.cs.bell-labs.com/cm/cs/pearls/
http://www.webdesigns1.com/perl/ir.html
C
http://www2.its.strath.ac.uk/courses/c/
http://www.cs.cf.ac.uk/Dave/C/CE.html
http://www.cprogramming.com/tutorial.html
http://www.acm.uiuc.edu/webmonkeys/book/c_guide/
C++
http://www.cs.virginia.edu/c++programdesign/slides/
http://www.icce.rug.nl/docs/cplusplus/cplusplus.html
http://www.uow.edu.au/~nabg/ABC/ABC.html
http://burks.brighton.ac.uk/burks/pcinfo/progdocs/cppcrit/index.htm
JAVA
http://java.sun.com/docs/books/tutorial/
http://www.particle.kth.se/~lindsey/JavaCourse/Book/courseMap.html
http://www.javaworld.com/index.html
http://career-assessments.blogspot.com/2008/01/sun-java-certifications-aspirants.html
J2EE
http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/DEA2eTOC.html
http://www.javaranch.com/
SQL
http://riki-lb1.vet.ohio-state.edu/mqlin/computec/tutorials/SQLTutorial.htm
SAP
http://www.onestopsap.com/
LISP
http://www.cs.cmu.edu/afs/cs.cmu.edu/project/ai-repository/ai/html/cltl/mirrors.html
ADA
http://www.adahome.com/Tutorials/
VISUAL BASIC
http://www.devx.com/DevX/Door/7047/books/
X WINDOW
http://tronche.com/gui/x/
GNOME
http://developer.gnome.org/doc/GGAD/ggad.html
KDE-http://perso.wanadoo.es/antlarr/tutorial.html
http://developer.kde.org/documentation/tutorials/index.html
HACKING
http://www.firstmonday.dk/issues/issue4_2/gisle/index.html
http://catb.org/~esr/faqs/hacker-howto.html
CISCO
http://www.cisco.com/univercd/cc/td/doc/product/