A number of scams are out there designed as home based business recommendations. It is important not to get taken in by shiny promises, especially when it comes to work at home. Predators seek desperation, realizing that many prospective work-at-home entrepreneurs are single mothers, college students or disabled.
Unfortunately, it can be very hard to get legitimate work from home jobs. This is verified by a ScamBusters.org interview with Beverley Williams, president and founder of the American Association of Home-Based Businesses, who says, "There are very few legitimate [work-at-home job] opportunities available."
Envelope stuffing may sound easy and attractive but is virtually always a scam. Craft assembly is another infamous fraudulent scheme disguised as a work-at-home opportunity.
The best rule of thumb is if you are expected to pay anything upfront--even a couple of dollars for a "training packet"--that it is likely a scam. Some unscrupulous people take advantage of people's desire to create an at-home business and claim they can set you up with a medical billing, mystery shopping, order processing, or typing company if you pay a "modest" training fee.
Likewise, if you are told you'll be an "employee" this is almost always a scam aside from telecommuting for already well-established companies. Almost all legitimate work from home jobs are self-employment opportunities, which pay you on a 1099 as a contractor rather than an employee-based W2.