LinuxCertified.com
Linux training and certification classes for busy IT professionals

Linux Professional Institute
Non-profit organization offering vendor neutral certification exams.

SmartCertify Direct
Linux Certification Training for various Linux Certifications like Red Hat ( RHCE ).

Suncochin Linux Training
Provides courses for RHCE and SCNA track, network solutions, application development, and corporate training tool.

Linux.CertifiedProgrammer.com
A resource for programmers and administrators who are studying for the exams.

Free RHCE Test Preparation Site
Offer free practice tests and study guides.

RHCE Preparation
Free help for the Red Hat Certified Engineers exam. Explains several scenarios the candidate should be able to complete without referring to books or other materials.