GeekExplains may help you understand the already-known concepts (mainly technical) even better and at the same time it may introduce you to many new concepts and their effective implementation as well.
Currently focusing primarily on Java/J2EE, Oracle, Puzzles, C/C++, HR questions, and Tips/Hacks. I welcome you to share what you know, ask what you don't, suggest, and consequently make the blog more useful.
Thanks,
Geek
http://geekexplains.blogspot.com