Using the URLS you have from the you'll be doing a simulation of Google PageRank in class. According to Google, "You can use PageRank to see a page's importance, which Google calculates based on things like the number of links leading to that page. Pages with higher PageRank are more likely to appear at the top of Google search results."
This is why websites like Wikipedia, Yahoo, or reliable resources like government websites show up higher on your search results than less reliable websites.
Wikipedia has its own interesting self-contained network of links, creating a power structure within its own website. Take a little time to try navigating between wikipedia articles just by clicking on the links on a random wikipedia page. A fun game to try is seeing how few clicks you can make between two wikipedia pages. Maybe you start with Japan and try to click on the links within that article, and then the next article, until you get to Bard College. Can you beat 5 clicks?
You can also check out this list of articles and links to interesting ideas about networking and the internet here!