Pinging is actually the action where a certain aggregator is notified whenever your web log or blog is updated, so that the aggregator may show the freshest post of your blog on their website. This is also a very useful method to pulling in some traffic to your site.
Sending out a ping is like raising your hand in class to announce you have something to say. Your teachers, the search engines and aggegators are waiting to hear you speak. If you don’t ping the weblog tracking sites to let them know that your site has been updated, how will they ever know. The bigger your ping list, the higher the chances of receiving traffic from those sources.
With that said, pinging is a great way to get the word out. Here’s a list of sites that I personally ping to inside my wordpress panel:
A trackback – is a word used mostly for search engine optimization purposes. In layman’s terms, when you post about someone else’s blog post elsewhere, your post will show up in their “trackback” section. It’s a very effective way for one to keep track of who’s linking and referring your posts. A permalink is used to create a trackback.
**Note: The trackback feature is not available with a Blogger.com account. However, if you are using WordPress as a blogging platform or website,trackbacks can be used to boost your search engine rankings.
Here’s a more technical definition from our trusted source wikipedia; A trackback is one of three types of linkbacks, methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking, and so referring, to their articles. Some weblog software programs, such as WordPress, CuteNewsRU, Movable Type, Typo,Community Server and Kentico CMS, support automatic pingbacks where all the links in a published article can be pinged when the article is published. The term is used colloquially for any kind of linkback.
Permalink stands for permanent link, which is a URL (uniform resource locator) that leads to an individual post that you make in your blog. In other words, this page right here has a permanent link that you can copy and save or email or do whatever you wish with it.
For example, most people will use a permalink, if they find something on your site that interests them, and they want to let the folks over at their blog know about it. That’s when they will use what’s called a trackback to your site.