Internet courses can help you learn web development, digital marketing, cybersecurity, and data analytics. You can build skills in coding languages like HTML, CSS, and JavaScript, as well as search engine optimization (SEO) and online advertising strategies. Many courses introduce tools such as Google Analytics for tracking website performance, WordPress for content management, and various coding frameworks to streamline development processes.

Universidad Austral
Skills you'll gain: Media Buying, Digital Media Strategy, Paid media, Online Advertising, Marketing Effectiveness, Media Strategy, Contextual Advertising, Media Planning, Performance marketing, Digital Marketing Campaigns, Digital Advertising, Campaign Management, Advertising, Advertising Campaigns, Personalized Campaigns, Business Metrics, Data-Driven Marketing, Key Performance Indicators (KPIs), Bidding
★ 4.7 (183) · Beginner · Course · 1 - 4 Weeks

Universidade de São Paulo
Skills you'll gain: Infectious Diseases, Epidemiology, Infection Control, Microbiology, Public Health and Disease Prevention, Public Health, Maternal Health, Biology, Health Education, Immunology, Child Health, Community Health, Prenatal Care, Preventative Care, Neurology
★ 5 (245) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Verification And Validation, Theoretical Computer Science, System Testing, Embedded Software, Software Systems, Communication Systems, Systems Design, System Design and Implementation, Embedded Systems, Automation, Process Modeling, Behavioral Management, System Configuration, Markov Model
★ 4.4 (183) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Ethics, Dashboard Creation, Dashboard, Power BI, Business Intelligence, Interactive Data Visualization, Data Presentation, Data Visualization, Data Visualization Software, Data-Driven Decision-Making, Business Reporting, Data Analysis Expressions (DAX), Data Security, Ethical Standards And Conduct, Report Writing, Data Analysis, Performance Analysis, Performance Tuning
★ 4.7 (45) · Beginner · Course · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: Mathematics Education, Geometry, Logical Reasoning, Childhood Education and Development, Deductive Reasoning, General Mathematics
★ 4.8 (97) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Generative AI Agents, LangChain, AI Workflows, LLM Application, Agentic systems, Agentic Workflows, Development Environment, Model Evaluation, Artificial Intelligence, AI literacy, Scalability, Performance Tuning, Model Optimization, Design
★ 4.5 (119) · Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Cryptography, Cryptographic Protocols, Application Security, Cybersecurity, Data Security, Encryption, Vulnerability Assessments, Information Systems Security, Key Management, Infrastructure Security, Public Key Infrastructure, Public Key Cryptography Standards (PKCS), Authentications, Mobile Security, Data Integrity
★ 4.6 (76) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Machines, Microsoft Azure, Infrastructure As A Service (IaaS), Cloud Infrastructure, Cloud Computing Architecture, Virtualization and Virtual Machines, Cloud Deployment, Firewall, Cloud Computing, Network Security, Virtual Networking, Web Servers, Network Administration, Remote Access Systems, Application Deployment
★ 4.5 (223) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Networking Hardware, General Networking, Network Architecture, Wireless Networks, Network Protocols, Computer Networking, TCP/IP, Local Area Networks, Network Security, Network Troubleshooting, System Configuration, Wide Area Networks, Servers
★ 4.5 (295) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Finite Element Methods, Simulation and Simulation Software, Engineering Analysis, Simulations, Engineering, Verification And Validation
★ 4.6 (254) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Internet Of Things, API Design, Amazon Web Services, Embedded Software, Cloud Computing Architecture, Application Programming Interface (API), Network Protocols, Microservices, Cloud Applications, Cloud Services, Communication Systems, Middleware, Cloud Platforms, Embedded Systems, Information Systems Security, Telecommunications, Cloud Technologies, Interoperability, Cybersecurity, Cloud-Based Integration
★ 4.5 (127) · Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Search Engine Marketing, Search Engine Optimization, Web Analytics and SEO, Digital Marketing, Keyword Research, Online Advertising, Return On Investment, Media Planning, Consumer Behaviour, Cross-Channel Marketing, Marketing, Digital Media Strategy, Digital Advertising, Digital Marketing Tools, Digital Marketing Campaigns, Digital Brand Strategy, Marketing Channel, Social Media Marketing, Marketing Budgets, Business Analysis
★ 4.8 (16) · Beginner · Course · 1 - 3 Months