The document summarizes 5 web tools: 1. drop.io allows file sharing and collaboration. 2. Google Docs allows document creation and real-time collaboration on documents, spreadsheets, forms and presentations. 3. Ning allows users to create their own social networking sites with features like blogs, photos and videos. 4. WebNotes allows online note-taking, research organization, and collaboration with colleagues on research notes and PDFs. 5. SlideShare allows users to upload and share presentations that can be viewed online and include audio.