The document discusses different methods of organizing digital information, including tagging and the use of social bookmarking and photo sharing websites. It covers hierarchical and nonhierarchical organization approaches and describes how tagging works on websites like Flickr and Delicious to allow users to collectively organize content through folksonomies. These tagging features allow items to be associated with multiple tags and support recommending related content to users.

3. Overview Chapter 4: Organizing Information

5. Organizing Digital Information Chapter 4: Organizing Information

6. Organizing Digital Information Chapter 4: Organizing Information

8. Organizing Digital Information Chapter 4: Organizing Information

10. Tagging Information on the Web Chapter 4: Organizing Information

11. Tagging Information on the Web Chapter 4: Organizing Information

13. Tagging as a Means of Collective Organization Chapter 4: Organizing Information

16. Sharing and Tagging Photos on Flickr Chapter 4: Organizing Information

19. Sharing and Tagging Photos on Flickr Chapter 4: Organizing Information

20. Adding a Flickr Badge to your Blog Chapter 4: Organizing Information

21. Syndicating Your Photos Using RSS Chapter 4: Organizing Information

22. Setting Creative Commons Licenses Chapter 4: Organizing Information

25. Social Bookmarking with Delicious Chapter 4: Organizing Information

27. Sharing and Tagging Bookmarks with Delicious Chapter 4: Organizing Information

28. Interacting with Delicious Chapter 4: Organizing Information

29. Saving a Bookmark Chapter 4: Organizing Information

31. Searching for Bookmarks Chapter 4: Organizing Information

35. Advanced Features of Delicious Chapter 4: Organizing Information

38. Chapter 4 Complete