35 Provision of an online marketplace for buyers and sellers of goods and services; facilitating the exchange of needed information for financial compensation via the Internet; Advertising, marketing, and promoting the goods and services of others via online social network; Providing and operating an online marketplace for buyers and sellers of downloadable virtual goods and block-chain based virtual assets, namely, downloadable multimedia files containing artwork, text, audio, and video relating to entertainment, art, fashion, clothing, footwear, belts, headgear, and bags, and virtual artwork goods consisting of photos, drawings, graphic designs, paintings and sculptures for use in online virtual world environments, all authenticated by, non-fungible tokens (NFTs)