Need Courseware

[Plasma_Snake]

I looked around on NPTEL and MIT OCW but couldn't find decent material(videos to be precise) on the following topics:

Software Architectures
Advanced Operating System
Advanced Compiler Design
Pervasive Computing

If u know any site from where I can get the vids for these, do lemme know. Good books and even notes will also do for a while but will prefer vids.

[The Conqueror]

You can try academicearth.org or freevideolectures.com

Best if you can find something useful here : Free Education | Audio/video Courses - Computer Science and Engineering