MartNinja - Increase store sales: Community of online sellers to cross promote products

Hello, I am the maker of MartNinja. MartNinja is a network of online sellers from Etsy, Shopify, Ecwid, Ebay, Alibaba and offline sellers to leverage each other's social reach to promote your products. You can make money by sharing products that you like. We launched a beta about 30 days back and onboard 1500 Etsy and Shopify sellers. 340 sellers promoted 1259 products, got their products shared 90,000+ times and increased their sales by 11%. Over 400 sellers earned over $30 & 30 sellers earned over $100 last month - enough to pay for Etsy or Shopify monthly fees. We are trying to build a go-to network for any online seller to get initial traffic on his/her new products in quick time. MartNinja will slowly convert into an alternate selling platform with own promotion network and in-built marketing and analytics tools. Please share your ideas, possible ways to make it better and what else can we do with this.