# Overview The second section of the Lexicon will give people a more in depth look at what the next iteration of web technology has the capacity for and how it will change the way you see the web. We will go through a number of different tutorials and guides that go into detail in case you are feeling unsure about a certain subject or concept that might need some clarification. Welcome to the intermediate track of the Lexicon! Building upon the last few lessons you will now learn the following: * Navigating: Brief tutorial on some web3 apps and their uses. * Building: Introduction to our favourite tools for creating and building in the web3 ecosystem. * Protecting: A comprehensive guide on best security practices and how to protect yourself from bad actors. * Ethereum: A general purpose blockchain, learn how smart contracts work in a decentralized network. * Optimism: A layer 2 built on the Ethereum net with loads of tools for developers and users alike. * Universe: The universe protocol is a marketplace catered to the artist, created by xyzDAO. * Guild.xyz: A platform made to connect and build with different users and groups(DAOS/Guilds). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://dagora.gitbook.io/guides/intermediate/overview.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.