I think that this website measures its effectiveness by keeping track of the number of new members. On the homepage, they have a box showing all of the new members. Paramore.net also keeps track of how many people buy music legally from the website as well as how many fans purchase merchandise. The effectiveness of the website is also measured by the number of posts, conversations, photos and videos posted, and other things that can spark up conversations among Paramore fans. The website tracks all interactions occurring on the band’s website.
I believe that Cisco Eos allows for Warner Music Group to build larger fan bases for their bands. By having fans join social media sites that revolve around their favorite artists, people have a chance to find common ground with others, and, therefore, building relationships and spreading the word out about a particular band.