Has anyone had any experience with Wordpress-like blog pinging?

Unfortunately, I use a custom built article-management system and do not have access to wordpress' pinging function.

As I understand, I need to build a script that will ping a list of all major blog pinging services that accept post data through the XML-RPC protocol whenever a new article is added on my website.

However, I have not had any experience with this and cannot seem to find much information on this anywhere, as everyone seems to be using Wordpress and semi-automated submission services like ping-o-matic.

I'm in need of help with building such a script and implementing it. Pretty lost and confused at the moment.