The Brock Press website appears to include scripts from Facebook which allow Facebook to track the users from Facebook who have active cookies there. (Or just about anyone who has been on Facebook) This may have been done unknowingly by the developer of the site or The Brock Press. This allows Facebook to understand which sites, including The Brock Press, users of Facebook are visiting and target ads to them when they are on Facebook. Another use of tracking cookies is to potentially sell their browsing history to other companies. The Brock Press also includes a Flash player on their site which allows you to view their recent issue. We will discuss the problems with using Flash and 3rd party tracking cookies and scripts.
The EU recently has created new laws with the intent of creating informed consent about cookies to users of their sites. This ended up being counter productive since the creation of these laws made websites embed scripts in their sites under the guise of a creating informed consent that have more tracking cookies in them.
Generally there are two reasons to create as script that you want other developers to embed on their site. 1. To generate notice, co-brand, or provide useful services. 2. To track, generate analytics, or maliciously infect users.
There are several banners or links that certain social media sites use to generate traffic on their site. Facebook has the like button, Linkedin has the connect button, Twitter has embeddable tweets. Often Web Developers can often include these as a quick way to link to a company social media page. These banners or links often contain tracking information as is evident by the use of Privacy Badger by the EFF in the image below. The better way is to responsibly use each sites branding guidelines to create a link that is personalized to match the theme of your own site while also respecting your users privacy. This is what I do on my personal site where it is available.
Privacy Badger is available for most modern browsers and detects and blocks tracking sites/domains using an algorithm that is more complex than a white/blacklist.