Blogs can be written on a variety of platforms, including blogging websites, social media platforms, and personal websites. Some popular blogging websites include WordPress, Blogger, Medium, Tumblr, and Squarespace. Social media platforms such as Facebook and LinkedIn also offer blogging capabilities, allowing users to write longer posts and share their thoughts with their network. Additionally, many individuals and organizations create personal websites or use their business websites to host a blog section where they can write and publish their content. Ultimately, blogs can be written and published from anywhere with an internet connection, making it easy for anyone to start their own blog.