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• https://www.acilearning.com/ – At ACI Learning, we train leaders in Cybersecurity, Audit, and Information Technology. Whether you’re starting your IT career, mastering your profession, or developing your team, we’re with you every step of the way.
• https://www.itpro.tv/ – ITProTV is an elearning platform that aims to allow you to ditch the boring slide shows and start really learning IT.
• https://skills.practice-labs.com/ – Practice Labs is a hands-on learning virtual IT lab and digital platform provider allowing people to build digital and IT Skills.
• https://networkchuck.com/ – NetworkChuck is dedicated to helping you hack your IT career.
• https://veteranit.net/ – We Are Dedicated to Helping US Military Veterans Make the Transition into a Civilian Career in Information Technology
• https://www.hackthebox.com/ – Hack The Box is a massive hacking playground, and infosec community of over 1.3m platform members who learn, hack, play, exchange ideas and methodologies.
• https://tryhackme.com/ – TryHackMe is a free online platform for learning cyber security, using hands-on exercises and labs, all through your browser!
• https://darknetdiaries.com/ – This is a podcast about hackers, breaches, shadow government activity, hacktivism, cybercrime, and all the things that dwell on the hidden parts of the network. This is Darknet Diaries.

• https://owasp.org/ – The OWASP^® Foundation works to improve the security of software through its community-led open source software projects, hundreds of chapters worldwide, tens of thousands of members, and by hosting local and global conferences.
• https://attack.mitre.org/ -MITRE ATT&CK^® is a globally-accessible knowledge base of adversary tactics and techniques based on real-world observations. The ATT&CK knowledge base is used as a foundation for the development of specific threat models and methodologies in the private sector, in government, and in the cybersecurity product and service community.
• https://www.issa.org/about-issa/ – ISSA is the community of choice for international cybersecurity professionals dedicated to advancing individual growth, managing technology risk and protecting critical information and infrastructure.
• https://cloudsecurityalliance.org/ – CSA harnesses the subject matter expertise of industry practitioners, associations, governments, and its corporate and individual members to offer cloud security-specific research, education, certification, events and products.
• https://www.schneier.com/ – Bruce Schneier is an internationally renowned security technologist, called a “security guru” by The Economist.
• https://www.shodan.io/ – Shodan is the world’s first search engine for Internet-connected devices.
• https://censys.io/ – Censys is a platform that helps information security practitioners discover, monitor, and analyze devices that are accessible from the Internet.
• https://haveibeenpwned.com/ – Have I Been Pwned allows you to search across multiple data breaches to see if your email address or phone number has been compromised.
• https://www.apivoid.com/ – APIVoid provides JSON API services used for cyber threat analysis, threat detection and threat prevention, reducing and automating the manual work of security analysts.
• https://hunter.io/ – Hunter is a cloud-based email marketing software that allows organizations to find emails on company websites, verify domains and handle follow-up activities.
• https://shop.hak5.org/ – Founded in 2005, Hak5’s mission is to advance the InfoSec industry. We do this through our award winning podcasts, leading pentest gear, and inclusive community – where all hackers belong.
• https://viz.greynoise.io/ – GreyNoise collects, analyzes, and labels data on IPs that scan the internet and saturate security tools with noise.
• https://www.zoomeye.org/ – ZoomEyeis a Cyberspace Search Engine recording information of devices, websites, services and components etc.
• https://wigle.net/ – WiGLE (or Wireless Geographic Logging Engine) is a website for collecting information about the different wireless hotspots around the world.
• https://publicwww.com/ – PublicWWW is a digital marketing and affiliate marketing research tool that finds any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code.
• https://pulsedive.com/ – Pulsedive is a free threat intelligence platform. Search, scan, and enrich IPs, URLs, domains and other IOCs from OSINT feeds or submit your own. Linked IPs return PTR records.
• https://intelx.io/ – Intelligence X is a search engine and data archive. Search Tor, I2P, data leaks and the public web by email, domain, IP, CIDR, Bitcoin address and more.
• https://exploit-db.com/ – Exploit Database (ExploitDB) is an archive of exploits for the purpose of public security, and it explains what can be found on the database.
• https://www.whois.com/ – WHOIS is a public database that houses the information collected when someone registers a domain name or updates their DNS settings.

• https://temp-mail.org/ – Disposable e-mail is a temporary and completely anonymous email address with a predetermined lifetime that does not require any registration.
• https://tinywow.com/ – TinyWow offers a huge selection of free, easy-to-use tools for PDF files, videos, images, and more.
• https://alternativeto.io/ – AlternativeTo is a free service that helps you find better alternatives to the products you love and hate.
• https://www.importyeti.com/ – ImportYeti is a free online tool that allows you to browse the US import database to find out where retailers are sourcing their goods.