My net filter has recently started blocking gp1.wac.edgecastcdn.net/ several times everytime I access the Logos website.
Googling it reveals the following.
edgecastcdn.net is a domain used by EdgeCast CDN which is an other company that is part of a network of sites, cookies, and other technologies used to track you, what you do and what you click on, as you go from site to site, surfing the Web. Over time, sites like edgecastcdn.net can help make an online profile of you usually including the sites you visit, your searches, purchases, and other behavior. Your profile can then be exchanged and sold between various companies like edgecastcdn.net as well as being sold to other advertisers and marketers.
My filter doesn't block this on other websites so I wonder if Logos has recently installed this tool to track our movements on its site. I have to click block on every pop up so there's no harm done, it's just annoying.