Serena Williams talks why she joined Poshmark's Board of Directors in new ad. Poshmark is a company where you can buy used or new clothing. And now you can even buy from Serena's closet, with the ...

Aug 10 (Reuters) - Second-hand retailer Poshmark Inc (POSH.O), opens new tab on Tuesday forecast third-quarter revenue largely below estimates and warned that its marketing efforts were taking a hit ...

Poshmark, the social commerce site that lets people buy and sell new and used items to each other, launched a paid marketing tool on Thursday, giving sellers the ability to promote their entire shop ...

Forbes contributors publish independent expert analyses and insights. I write about retail and the forces that are redefining shopping. If a tree falls in the forest and there’s no one to hear it, ...