Eminem joins a secretive text-message startup, sponsored content rates drop, and a new media kit library
5:21am PDT - May 28th, 2020 myka stauffer - Business InsiderWelcome back to this week's Influencer Dashboard newsletter! As always, this is Amanda Perelli (from home) with a weekly update on what's new in the business of influencers and creators. This week, my colleague Dan Whateley and I published four influencer med…