Online Classes

I found very interesting site that has online classes for almost all the subjects. http://www.khanacademy.org/

PDFs for Oracle Certified Associate..

SQL
http://www.4shared.com/file/30708488/c6cf3727/D33051_Introduction_to_oracle_9i_sql_v1.html
http://www.4shared.com/file/30708585/b9bc21ad/D33052_Introduction_to_oracle_9i_sql_v2.html
http://www.4shared.com/file/30708398/da9b10e3/D33053_introduction_to_oracle_9i_sql_v3.html

PL-SQL
http://www.4shared.com/file/30709197/f11cbe79/D32945Introduction_to_oracle_9i_pl_sql_v1.html
http://www.4shared.com/file/30709227/10aed9eb/D32946Introduction_to_oracle_9i_pl_sql_v2.html
http://www.4shared.com/file/30709236/7eb2d83c/D32947Introduction_to_oracle_9i_pl_sql_v3.html

PL-SQL Orelly Book
http://www.4shared.com/file/30709176/1898a361/OReillyOraclePLSQLProgramming4thEditionAug2005.html

Oracle Complete Reference
http://www.4shared.com/file/30710480/30c0be4a/Oracle9iCompleteReference.html

Best Site for learning JAVA

Finally i come up with this site..recommended for ppl who strive to learn JAVA
http://javapassion.com :D
learn as much as u can and use your knowledge for the benefit of the mankind :D :D

Free Online Technical Books for Computer Science Students and Aspirants :D :D

http://www.freetechbooks.com/

Free Computer Books -- really nice site :D :)

http://freecomputerbooks.com/

Free E-Books download and Reading Online Have a nice time reading :D

http://www.openlibrary.org/
http://www.classicshorts.com/
http://www.hermetics.org/ebooks.html
http://www.truly-free.org/
http://www.bugabong.com/
http://www.gutenberg.org/wiki/Main_Page
http://vivien23.uw.hu/

Free Literature and Study Guides

http://www.bibliomania.com/0/0/frameset.html

TEST YOUR C SKILLS

BPB_Publications_-_Test_Your_C_Skills.part1.rar
BPB_Publications_-_Test_Your_C_Skills.part2.rar
BPB_Publications_-_Test_Your_C_Skills.part3.rar
BPB_Publications_-_Test_Your_C_Skills.part4.rar
BPB_Publications_-_Test_Your_C_Skills.part5.rar
BPB_Publications_-_Test_Your_C_Skills.part6.rar
BPB_Publications_-_Test_Your_C_Skills.part7.rar

Data Communications Tutorial

http://www.unm.edu/~network/presentations/course/chapters.html

Interview Questions

http://www.techinterviews.com/?p=170