There are many ways to advertise online for free. Some of the most popular methods include: Social media: Social media platforms like Facebook, Twitter and Instagram offer a variety of free advertising options. You can create business profiles, post content about your products or services and run contests and giveaways. Search engine optimization (SEO): SEO is the process of optimizing your website so that it ranks higher in search engine results pages (SERPs). This can help you to attract more visitors to your website without having to pay for ads. Email marketing: Email marketing is a great way to stay in touch with your customers and promote your products or services. You can collect email addresses from customers and send them regular newsletters and promotional offers. Content marketing: Content marketing is the process of creating and distributing valuable, relevant and consistent content to attract and retain a clearly defined audience and drive profitable customer action. This can include blog posts, articles, infographics, videos and podcasts. Guest blogging: Guest blogging is the process of writing articles for other blogs in your industry. This is a great way to get exposure for your own website and brand. Online directories: There are many online directories where you can list your business for free. This can help people to find your business when they are searching for products or services like yours.