The rapid development of the Internet led to the search for new possibilities of its use. Thanks to the Internet a lot of new business models were The authors pay special attention to the so-called advertising model and its specific type which is a projects that use this model in the blogosphere. Blogs are becoming a source of business opportunities and making the blog is the same type of business as traditional earning from the production. This model seems to be one of the most interesting business models resulting from the emergence of the Internet. It turns out, however, that it is not only perseverance in making interesting entries and the recognition of the readers to be able to keep up with the blog. At least some business skills to find opportunities of earning on your blog are also needed.