This document discusses three examples of using AJAX: 1) displaying tooltips with asynchronously retrieved server data, 2) autocompleting text fields, and 3) conducting surveys. For each example, it describes the key functions used, such as making asynchronous requests to the server and processing the responses. It concludes that AJAX can be useful for various applications and that one example required adding a database for it to work properly. The activity took approximately 5 hours for a three-person team to complete.