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What Is Proof of Work? How Blockchain Mining Works
How mining secures Bitcoin, what a 51% attack would take, and why the halving shapes what miners earn from every block.
Find Web3 Blog
Web3 guides, tutorials and career research.
Latest articles
41 articles
What Are Distributed Systems? CAP Theorem and Design Basics
How distributed systems scale and stay available, what the CAP theorem forces you to trade, and which consistency model to pick.
Cryptography Career Path: Skills, Degrees and Jobs
The degrees and programming languages employers look for, how to pick a specialization, and where cryptography roles are advertised.
7 Cryptography Projects to Build for Your Portfolio
Signal Protocol, TLS, zero-knowledge proofs, post-quantum schemes and key management, with how each works and what to build.
Crypto Social Media Marketing: X, Discord and Reddit
Why ad-led playbooks stall in Web3, how to structure a community people stay in, and which of X, Discord or Reddit fits a project.
What Is Distributed Ledger Technology? DLT Types and Uses
How a shared ledger reaches agreement without a central authority, how public, private and consortium DLTs differ, and where each is used.
7 Web3 Salary Negotiation Tips: Timing and Anchoring
How to benchmark Web3 pay, time the ask, anchor a number, and negotiate tokens and equity alongside base salary.
Layer 2 Scaling Solutions: Rollups, Channels, Sidechains
How rollups, state channels and sidechains take load off a base chain, and where optimistic and zero-knowledge rollups differ.
What Are Smart Contracts and How Do They Work?
How a smart contract executes itself on a blockchain, how it differs from a written contract, and where industries already use one.
Remote Contract Work in Web3: Pay, DAOs and Risks
What Web3 contracting pays, how DAO clients and token compensation work, where to find gigs, and the tax and legal side to handle.
Reducing Technical Debt in Web3 Smart Contracts and dApps
Spot technical debt in a dApp, keep a registry of it, prioritize smart contract refactoring, and make the case to stakeholders.
What Is a DAO? How Decentralized Governance Works
What a DAO is, how a proposal actually passes — forum, Snapshot, on-chain vote, timelock — and where DAO law stands in 2026 after Ooki, Lido and the DUNA statutes.
8 Web3 Cover Letter Tips for Blockchain Job Applications
Mirror the job description's Web3 terms, open with something specific, quantify your work, and address gaps or a career switch head on.
Remote Community Manager Jobs: 10 Platforms for 2026
Ten job boards worth checking for Web3 community roles, from Find Web3 and LinkedIn to We Work Remotely and Remotive, and how to search each one.
DeFi Risk Management: 7 Strategies to Protect Funds
How to cut DeFi exposure with contract audits, protocol diversification, planned exits, multi-sig custody, insurance and automated monitoring.
DeFi Yield Farming: How It Works and How to Start
How liquidity pools pay out, what separates APY from APR, why impermanent loss happens, and the steps to stake your first LP tokens.
Solidity Smart Contract Examples: 8 Common Patterns
How eight standard contracts work, from ERC-20 tokens and multi-sig wallets to DAOs, AMMs, NFTs, lending pools, staking and escrow.
How to Deploy a Smart Contract on Ethereum With Hardhat
Set up MetaMask and Sepolia test ETH, compile a contract in Hardhat, write the deployment script and verify the result on Etherscan.
Blockchain Development Platforms: How to Choose One
What a blockchain platform actually gives you, how public, private and hybrid chains differ, and a side-by-side look at the leading options.
Top Web3 Companies in 2026: 7 Employers to Watch
Profiles of seven Web3 employers, from OpenSea and Coinbase to Immutable and ConsenSys, with what each builds and the roles they hire for.
What Is Tokenomics? Supply, Utility and Distribution
How token supply, distribution, utility and vesting shape value, plus a framework for judging whether a project's economics hold up.
Smart Contract Security: Common Vulnerabilities and Fixes
Reentrancy guards, emergency stops, role-based access control and oracle hardening, plus the tools to test a contract before it ships.
Web3 Interview Preparation: An 8-Step Checklist
Research the protocol, build STAR stories, run mock interviews, line up your portfolio and references, and plan the logistics of the day.
DApp Architecture: Front End, Contracts and Data Layer
How the three layers of a decentralized app fit together, from the front end to smart contract logic and on-chain versus off-chain storage.
What Is Decentralized Finance? How DeFi Works
How lending, trading and yield protocols run on smart contracts instead of banks, why composability matters and where the real risks sit.
Blockchain Development Tools 2026: What Is Still Maintained
Foundry, Hardhat 3, Remix, viem and the rest, checked against their own sources in September 2026, plus four tools older guides recommend that are now retired.
Web3 Marketing Strategy: Channels, Rules and Costs
Which channels crypto projects can actually use, what the ad platforms and regulators allow, how to measure growth that lasts, and what marketing hires cost.
How to Get a Job in Web3: Skills, Portfolio, Network
Which Web3 roles are actually hiring, the skills employers test for, and how to build a portfolio and reputation that earn interviews.
Metaverse UX Design: Principles for Virtual Worlds
Presence, spatial affordances, wayfinding in three dimensions and interfaces built into the world, plus how to test what you have built.
NFT Marketing in 2026: Channels, Costs and What Works
The average NFT sale is now $75, against $420–460 at the 2021–22 peak. What NFT marketing actually works in that market, with every figure sourced and dated.
How to Become a Web3 Developer: Skills, First dApp, Jobs
The languages and tooling Web3 roles expect, a walkthrough of building and deploying a first dApp, then a 90-day plan for the job hunt.
Web3 UX Design: Wallet Flows, Gas Fees and Trust
Where Web3 UX departs from Web2: wallet connection flows, gas fees and failed transactions, and how to signal security without scaring users.
Blockchain Developer Resume: Structure, Skills, Evidence
What crypto employers name in their own job adverts, how to structure a blockchain developer resume around it, and what applicant tracking systems really do.
How to Create an NFT in 2026: Steps, Tools and Costs
The three transactions that mint a token, which platforms still accept new work, and what the fees actually come to, checked in September 2026.
Blockchain Project Management: Teams, Risk and Compliance
How decentralized projects change governance, team structure and technology choices, plus token volatility, regulators and energy impact.
Blockchain Security Audit: What It Covers and Who to Hire
What a full audit examines, how layered review and formal verification fit together, and how to choose an auditor and act on the findings.
Blockchain Developer Roadmap: From Fundamentals to dApps
The two developer tracks, the five stages between them and a job, the tooling that has been retired since 2023, and what the roles pay on this board.
Solidity Tutorial for Beginners: From Setup to Deployment
Set up a Solidity environment, learn the value and reference types, then write, test and deploy a first contract to a testnet.
Web3 Development Courses: What You Can Still Join in 2026
Five Web3 development courses open when we checked in September 2026, what each costs and assumes, and three that lists still recommend but you cannot join.
Web3 vs Blockchain: 7 Differences in How They Work
Blockchain is the ledger; Web3 is what gets built on it. Seven differences across architecture, tokens, governance, identity and interoperability.
What Is Web3? Blockchain, Smart Contracts and DAOs
The building blocks behind Web3, from blockchains and smart contracts to decentralized storage and oracles, and what DAOs change about control.
Research and reference
9 pages
Crypto and Web3 Terms
A searchable glossary of 78 crypto and Web3 terms, defined plainly - with how often each one appears in the 4,212 jobs posted on this board in the last year.
X (Twitter) Statistics 2026: Users, Revenue and Ownership
X's figures are in SEC filings for the first time since 2021, now that it sits inside SpaceX: advertising revenue, subscribers, users and losses, each with the date it was filed.
AI Statistics 2026: Users, Spending and Adoption
How many people use AI, how many businesses actually do, and where the money goes - from the companies' own statements and the surveys that say who they asked. Every figure dated and sourced.
Metaverse Statistics 2026: What Actually Happened to It
Meta has lost $92.2 billion on it, Decentraland had 33 people in it, and Gartner's prediction for 2026 can now be checked. Every figure from a filing or a live API, dated.
NFT Statistics 2026: Volume, Prices and What Is Left
NFT sales are 92% below the 2022 peak, the average sale is $75, and most of the marketplaces have closed. Every figure dated, with a note on which volume measurements can be trusted.
DeFi Statistics 2026: TVL, Trading and Where the Money Is
DeFi holds $96.3 billion, 45.7% below its 2021 peak, and TVL is partly a price chart. Every figure pulled from an API on the day, with the caveats the dashboards leave out.
Web3 Statistics 2026: Users, Developers and Market Size
How many people own crypto and how few use it, what happened to Web3 developers and Web3 tokens, and which of the figures in circulation cannot be sourced at all.
How Many Jobs Will AI Replace? 92 Million by 2030
The World Economic Forum expects AI and the other forces reshaping work to displace 92 million jobs by 2030 and create 170 million, a net gain of 78 million. What has actually been measured so far is smaller and stranger than either number.
Discord Statistics 2026: Users, Revenue, Valuation and IPO
Discord publishes less about itself than it used to. Every figure on this page says who published it and when, and where Discord has stopped saying, this page says that instead of quoting an old number as if it were current.