Beeplet : Timed alert service
Beeplet is nothing but a alerting service . You can access the the alerts by RSS feeds in three manners, precisely on time , day by day and a complete list of all youralerts . Yet another site with good use of Css with AJAX. It offers Alerts by mail. Instant messenger alerts are yet to be launched. Beeplet also offers a small code for website owners to put the alerts on their websites
You can add a button to Beeplet in your own site. This way Beeplet users can automatically add your events or reminders to their alert list! All you have to do is put this code in your HTML <body> and replace the date and time with whatever moment you want your visitors to be reminded of.