ENTREPRENEUR - Mar 8 - Within a year of its launch, Clubhouse has risen to stardom with a valuation of $1B. Its popularity and user base are multiplying, but its biggest challenges are perhaps yet to be come. The platform is free and carries no ads, with new users invited by current members. With several celebrities including the world's richest man Elon Musk using it, the app is so much in demand that e-Bay is selling invitations for $89. Unexpected appearances on Clubhouse from Elon Musk and Mark Zuckerberg over the past week alone have further boosted awareness of the app, alongside its quick ban in China. The app is a hit despite some concerns about online harassment, misinformation, and privacy issues on the platform.