The best work from home jobs are those that allow individuals to pursue work in a manner that does not conflict with their current schedule; for some this varies because their work from home job may be their main or only job at that. Work from home job opportunities can be found on several job postings websites, which makes sense; if you are looking for internet work from home jobs, the internet is often times the best place to start the job hunt.
There are plenty of jobs that can be completed from home that are not permanently linked with the internet, though. Work from home data entry jobs may only require sending spreadsheets through email, while other legitimate work from home employment may not involve computers at all; some people mail letter packages from home for an income.
When looking for a job that can be done from home, one must think of his or her abilities and whether they will fit the types of jobs being offered. Home offices with computers and computerized accessories are usually things associated with jobs performed at home, so having technical skills and a decent familiarity with computers is a plus, and strongly recommended in most cases.