The document discusses different types of blogs, including technology, business, and entertainment blogs. It provides examples of popular blogs for each category, such as Techaeris, Mashable, and TechCrunch for technology; Business Insider, Bplans, and Forbes for business; and Kotaku, Buzzfeed, and TMZ for entertainment. It then discusses the importance of collective intelligence for companies and people and how modern communication tools like spreadsheets, notes/task managers, and cloud storage can facilitate collaboration and sharing of ideas. Finally, it discusses how professional networks like LinkedIn can help boost networking and connect professionals.