One of the best promotional and marketing methods is to use “link in bio” option. By providing link on your bio on various social sites, you can sell products and services online. For example, you can provide your link on Instagram and Tiktok’s profile and promote your products through Reels and Tiktoks. In the description, you can write “link in bio.” People who are interested on the product you are promoting will check your boil and you generate traffic and sales. This method is very effective if have a lot of followers.