Link
Personal:
Blog (http://ki-h.blogspot.com/)
LinkedIn (http://www.linkedin.com/in/hyunwooki/)
Nexon (current company)
Innoace (past company)

Association and Group:
Khronos
ACM SIGGRAPH
IEEE
Eurographics
Korea Information & Science Society (in Korean)
Korea Game Society (in Korean)

Academic Book, Journal and Magazine:
Game Programming Gems Series
GPU Pro - Advanced Rendering Techniques
ShaderX7
Principles of Digital Image Synthesis
Physically Based Rendering (PBR & PBRT)
NVIDIA GPU Gems Series
ACM Transaction on Graphics (TOG)
IEEE Transaction on Visualization and Computer Graphics (TVCG)
IEEE Computer Graphics and Applications (CG&A)
Journal of the Optical Society of America A (JOSA A)
Applied Optics
Graphical Models
Computer Graphics Forum
The Visual Computer

Graphics Channel:
NVIDIA Developer
NVIDIA Developer Forum
GPGPU

Game Studio:
..

Miscellaneous:
Google
Wikipedia
ScienceDirect
Marquis Who's Who