Thanks,
Pearl

The widget code for this is quite complicated and a bit difficult to explain over my blog. My advice is to use an already existing widget, like the Digg, dissect the JavaScript and see how it works. Unfortunately there isn’t really an easier way to do this.

However you do need some server side bits and bobs, like you need to be able to output your data in a JSONP format (have a look at the JavaScript Weather article for a bit more information on this). Then process and render this data, you will have to be a creator on your site which will allow users to create the JavaScript with the options.

Hopefully this has helped you!

That was indeed very informative
I am currently working on a magazine site.
I want to provide an option to my customers just as the twitter profile widget only difference being i want to show my magazine article in the widget & provide options for customers to set the css & no. of articles.Can you provide som reference to the tutorials or any other blogs wherein you have demonstrated the widget code.

Thanks,
Pearl

There are a number of ways to over come retrieving data and sending data cross domain through JavaScript. For retrieving data take a look at my most recent post (JavaScript Weather), it talks about JSONP. Stay tuned for tutorials on how to send data across domain.

Thanks for this nice tutor. I developed ajax based javascript widgets and those widgets can be used in social medias. I know there is a cross domain issue, but is there any other solution to overcome this??

Thanks for sharing it.

I’m not a developer, but I know I’m missing something somewhere. Could you offer a little help to a newbie?

You can’t send AJAX request across domains because of the Cross Site Scripting (XSS) attacks. Browsers would not let you send the request, and you would just get an error message back.