I want to launch an online marketplace where businesses can buy and sell advertising in the form of sponsored content. The core idea is simple: publishers list their sponsored-post packages and advertisers browse, purchase and track campaigns, all in one place. What I need built is a responsive website that handles user registration, profile and listing management for both advertisers and publishers, a searchable catalogue of sponsored opportunities, a secure checkout flow with major gateways such as Stripe or PayPal, and an order dashboard where each side can message, upload copy, mark deliverables complete and leave feedback. Basic analytics for impressions and clicks on published posts would be a big plus so advertisers can see how their spend performs. Because this is a pure marketplace play, reliability and ease of use are critical. I am happy to build on WordPress + WooCommerce, Laravel, MERN or another stack you recommend, provided the end result is scalable and easy for me to manage without deep technical knowledge. Clean, modern UI, mobile-first responsiveness and on-page SEO best practices should be baked in from the start. Key deliverables • Fully functional sponsored-content marketplace site, deployed to my hosting • Seller and buyer dashboards with messaging and order tracking • Payment integration, automated invoices and payout scheduling • Search, filtering and category pages for listings • Admin panel to vet users, moderate listings and pull reports • Basic analytics for campaign performance Please outline your proposed tech stack, milestones and estimated timeline, and include links to any similar marketplace projects you have completed.