A bulletin, or bulletin board system (BBS), is a computer system that runs dedicated software that allows users to perform a number of online functions. Some of the things that users can do on a BBS virtual environment include the ability to upload and download software and other digital data, read news reports and bulletins, and exchange information by communicating with other users of the service.
While bulletin boards are primarily a social phenomenon, they are also used for business and marketing purposes by some organisations. Along with specialised BBS software, a computer bulletin can also refer to an online noticeboard, with some online bulletins set up specifically to promote particular products and services. Bulletins can be very powerful advertising tools, as they offer a way for a company to target their campaigns to particular sections of the online market. If an awning (Markisen) business wanted to promote their awning designs to a targeted and engaged online audience, an online bulletin could offer them the perfect promotional medium.
While the term bulletin board refers to the traditional ‘cork and pin’ boards often seen at supermarkets and universities, the online versions differ in a number of ways and offer a much wider range of services. For example, the majority of BBS services provide their users with free email accounts, FTP services, IRC chat, and a number of other online tools involving networking and the transfer of data. BBS services used to be run by single computers, meaning that access was often unreliable and slow. BBS services were also limited to text based communication at first, with later advances including limited graphical and audio capabilities. While BBS software and services have become little more than a niche hobby around most of the world, it is interesting to note that they are still a very popular way for Taiwanese youth to communicate with each other.

Specialised home improvement businesses like those selling prefabricated garages and awnings are often looking for novel ways to promote their products to an online audience. As well as more recognised promotional activities like writing a business letter and publishing an online diary or blog, some businesses are also getting involved in online bulletin promotion. In a bulletin, an awning business can promote their products by mentioning the advantages of awning installation, such as their ability to provide shelter and shade from excessive sunshine. Online bulletins offer a great way for modern businesses to promote their products and services to a targeted market of potential consumers.