Ping is the method to let some well-known sites know that you have recently updated your blog. This is a little bit different in concept than the traditional ping, which you use to ping a computer on a network to see if it responds or not. When you ping your blog, it sends a note to the site you pinged letting that site know that your site has fresh content. People visit these big web-sites, often, to find out a list of recently updated sites. The whole wide web is so big, that it is almost impossible to see another site being updated without having a reference to it. You can bring that reference to the attention of the people through the pings. One of the most famous site that falls into that category, and has been around for a while, is Weblogs.com .
There is one basic rule we should follow when using this technique; if we update our blog every 5 minutes during any time period, we should not send a ping every 5 minutes. While it may bring in more visitors, sending a ping repeatedly within very short time spans may actually get a site banned from the site that is receiving the ping, as such a technique is also used by those who simply wish to have their site noticed more often, whether or not they have updated content on their sites.
Many blog publishing tools offer you the option of pinging Weblogs.com or some other popular sites. There are several places you can send a ping to, which is a problem today as webmasters and writers have to ping numerous sites repeatedly to let them know that the site has been updated. One of the online tools that allow you to ping numerous sites at the same time within one interface is Ping-O-Matic.