Guest Blogs and Editorials are value-added content intended to create additional off-page link value with the main purpose of generating additional authoritative links. Its value lies mainly in the potential to pass on link authority through referral visits.
Press Release is an awesome way to promote the brand and the website. Its main intent is to announce developments or new products and services the business may offer. These articles are quite useful when announcing large promotions, sales and even news about the store.
Another type of content is the PDF. Its main purpose is document-sharing. Therefore, it's not only limited to readership or optimizing content for search engines.
On-page blogs differ from guest blogs because they appear on the client's website and should always be relevant to the products and services offered by the business. A call-to-action should be invoked through writing and is usually included in the last paragraph of the content.