Is anybody know about wounion and e fulfillment service

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Recently, I get mail regarding online job by e fulfillment service. Before that i alsso get mail from wounion. Both of these provide job of transaction manger and mail order manager at home. Is you know anything about these two sites. Is these sites are real and only one more addition to online spam. I am interested in knowing what type of work they provide and howm much they pay for the work. Please share your opinion if you have proper information about that.