In today's world, society has become totally digitalized where technology is playing a very important role in everyone's life. Blockchain is a method that is useful in recording information and makes its difficult to change, hack, or fraud system. A blockchain is fundamentally a digital ledger of volume of transactions that is distributed across the overall network of IT system on the blockchain. This technology acts as a reliable layer in the evolution of e-commerce. Walmart has been working with IBM on a food safety blockchain solution to add transparency to the decentralized food supply ecosystem by digitizing the food supply chain process. This chapter will cover the concept and origin/emergence of blockchain technology and implications of blockchain technology in supply chain (Walmart), the significance and role of blockchain technology for the users and the stakeholders, the implications for the users, challenges faced by Walmart during the adoption of blockchain technology, and the approachability of Walmart to IBM for the implication of blockchain to their organization.

E-marketing allows one to do business by using online sources. This internet source is also helping the travel and trade industries in getting the growth in their business or if the business man of small-scale industries were made aware of this then they can achieve much more in their travelling business along with the valuable customers. The chapter aims at identifying components of e-marketing that provide competitiveness in travel trade industry and address the use of e-marketing components that provide competitiveness in travel and tour industries.