ajax im (”asynchronous javascript and xml instant messenger”) is a browser-based instant messaging client. It uses the XMLHTTPRequest object in JavaScript to send and receive commands to and from the server. No refreshing of the page is ever needed for this “web application” to work, as everything is updated in real-time via JavaScript.

Wayki is a free service that lets you create linkable map markers that you can share with others. It uses Google Map to enable users to post information, pictures and share the marker with others.