Blogs and websites do not have to be a requirement to be successful in the SFI, but it would be desirable to have one of them or even both. It is important to write a short ad at the website brief, clear, with enough information, and above all, a serious and useful. You can also create a blog with more information and details, and a link from your blog to insert the website so if anyone is interested and wants to learn more can read the blog.