updates
Create Twitter Timeline Script
Create your own twitter-like timeline using PHP, MySQL and jQuery.
Visitor counter or live update
Periodical visitor counter or any live update with Ajax and Prototype.
Add Twitter to your blog (step-by-step)
Step-by-step guide to adding Twitter to your blog without it hanging your web site.
data updates in real-time with AJAX
An example of how to implement real-time 'spy' type updates, using ASP.NET AJAX, web methods, and .NET caching. Full source code included.