The industry rag is "Embedded" ( http://www.embedded.com/ ) which replaced the print version published as "Embedded Systems Programming". There used to be three to four pages of "Help Wanted" ads near the back of each issue and that was the best place to find embedded systems jobs. The reality is that most job boards have these listings now (and they're usually cross-listed) but you often have to search for embedded related topics to find them. Try PIC, Microchip, ARM, uC, uP, etc.