I am helping the female friend on a speech she is doing over the Megahertz Myth. She needs to have at least three sources from peer review journals, but I have no clue what peer review journal is gonna write about PowerPC vs. x86. I found a few Macworld/MacAddict articles + a buttload on the web.
Any other tech majors offer some assistance on where to start my search since searching the library didn't return any results?