Web 3.0 refers to the next generation of the World Wide Web, often described as a more decentralized and user-centric version compared to Web 2.0. Here are some key characteristics and concepts associated with Web 3.0:

1. Decentralization: Web 3.0 aims to reduce reliance on central authorities and intermediaries. Blockchain technology plays a significant role in achieving decentralization, allowing for peer-to-peer interactions and data ownership by users.
2. Semantic Web: Web 3.0 seeks to improve the understanding of web content by machines. This involves adding metadata and context to web data, enabling more intelligent search and data interpretation.
3. Interoperability: Web 3.0 promotes interoperability between different platforms and applications. This means that data and services should be seamlessly accessible across various devices and services.
4. User Control: Users are expected to have more control over their data and digital identities in Web 3.0. This includes owning and managing personal data through decentralized identity systems.
5. Smart Contracts: Smart contracts, enabled by blockchain technology, are self-executing contracts with the terms of the agreement directly written into code. They automate processes and transactions, reducing the need for intermediaries.
6. Decentralized Finance (DeFi): DeFi is a prominent application of Web 3.0, where financial services like lending, borrowing, and trading operate without traditional banks or financial institutions. These services are typically built on blockchain platforms like Ethereum.
7. Web Assembly (Wasm): Wasm is a technology that allows running code written in various programming languages in web browsers. It enables more powerful and flexible web applications.
8. AI Integration: Artificial intelligence and machine learning are expected to play a more prominent role in Web 3.0, providing personalized experiences and content recommendations.

Web 3.0 represents a vision for a more open, secure, and user-centric internet, but its full realization is an ongoing process that involves the development of new technologies, standards, and adoption by both developers and users.