Ping - Whats it about?

A "ping" is a way of notifying various directories and search engines, in an industry standard way, that you have just made a post on your blog or website.

This is nothing but a signal sent from your site to the target directory (or aggregator service) that you are actually pinging (the pingee), and this signal contains the URL of your post.

Following this, the pingee picks up the URL and content from your post, and when someone on that site searches for keywords contained in your post, then your post shows up in their search results.

RPC Ping Services

XML-RPC stands for XML Remote Procedure Call. A protocol for client-server communication that sends and receives information on top of HTTP. The data sent and received is in a particular XML format. See links for some services that are available to use.