A great post on women 2.0 about how to avoid what she terms "pink ghetto" jobs. These are jobs that are just as bad for men as for women, and are often the first job or two you fall into as a new graduate. eg unpaid internships, poorly-organised, unfunded startups and those dead-end jobs where you end up maintaining monstrous legacy code on very low pay, rather than learning new skills.
The article takes a good look at how to spot the duds, and how to find better employment options.
I've fallen into the trap of several of these myself, over the years. From the "100% equity (but the product is totally unsaleable and we didn't bother to research that before you spent 23 man-days working on it)", to the poorly-paid legacy-code maintainer (plus guilt trips to keep me on even after having three months of unpaid invoices), to a job for a "web developer" (that actually mainly works on resetting our customer's forgotten passwords). So - it's definitely worth knowing how to spot these trucks coming before they run over you and leave you in the dust, bleeding financially.
Have you had any experiences of ghetto jobs yourself?