Castell touches on this by discussing the rise of "noopolitick" and cyberspace (when combined it's dubbed as "noosphere"), but even then he's talking about cyberspace's power-making abilities as tools for institutions. Contrasting with these organized institutions he mentions (governments, international organizations, business firms, NGOs, etc), informal groups and individuals have been using the power of the Internet to accomplish great things. In 2009, Robert Hansen developed a software called Slowloris, used to block access to specific websites. Slowloris is unique from other hacking software because it sends a broken request therefore stalling the server which prevents other Internet traffic from being affected, instead of jamming an extreme amount of access requests on a server. This software was used to shut down the Iranian government website for the Iranian election without interfering with the internet access for Iranian protesters. Another example is CryptoCat, developed by 21-year old Lebanese hacker Nadim Kobeiss. CryptoCat is a software that encrypts a chat room making it impossible for unwanted guests to decrypt the conversation - specifically made with the intention of allowing Arab activists to talk online in complete privacy. The same Internet we use is being used by other people in ways that may facilitate positive change in that time and place.
Personally, I find these uses of the Internet way more profound than the United States' use of it for political strategy, as Castell discusses. Maybe Castell wasn't focusing on international uses of the Internet, or maybe its potential uses weren't really quite known at the time the article was published. I'm really hoping people start looking at how the Internet can really be used to make change, and capitalize on this resource we have in front of us.