The document discusses how social media and Web 2.0 have changed the nature of links and networks online. In Web 1.0, hyperlinks mainly linked to static pages, but in Web 2.0 links can connect to dynamic content and social objects like likes, shares, and saves. This has expanded the types of associations that can form networks beyond just hyperlinks. Tracking these new link types and how platforms handle them could help develop an "IssueCrawler 2.0" to map issue networks in the current social media environment.