Many use software that can quickly search a database to match workers with the needs specified by the hirer. Of course, price competition can result in your getting a really good deal. Most of the work on these sites reflects areas where workers are scarce, on-premises work isn't necessary and personality is arguably not paramount. Not surprisingly, technical work accounts for most of the posted and placed jobs. Other common virtual employment involves IT, marketing, finance and writing.
Some sites are more industry-specific.
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