Links are one of the most powerful parts of your blog. Not only are links noticed by search engines, but they also act as a tap on the shoulder to other bloggers who can easily identify who is linking to their sites. Linking helps to get you noticed by other bloggers who are likely to investigate the sites that are linking to them. This may lead them to become new readers of your blog or to add links to your blog from theirs.
You can take links to other blogs a step further by leaving a trackback on the other blog to let them know you've linked to them. Blogs that allow trackbacks will include a link back to your blog in the comments section of the post that you originally linked to. People do click on trackback links!
Definition: A link designates a connection between two websites. Links that you create to content external to your site are called outbound links. Links from other sites to yours are called inbound links.
Trackback: A way to notify a blog that you've linked to them from your blog and automatically leave a link as a comment on that blog which tracks back to the original link on your blog.
Permalink: The permanent link to a specific page within a blog or post that remains unchanged. Permalinks are useful for bookmarking or tagging a specific blog post for future reference or for creating links from your blog to a post in another blog.
Ping: A signal sent from one web server to another to verify its existence. Pings are useful to bloggers because they notify other sites when a blog is updated thereby driving traffic. Pings are also used when Blog A sends a trackback to Blog B notifying Blog B (via a ping and resulting trackback comment) that Blog A has linked to Blog B.
Using Trackbacks - An Example
A blog trackback is basically a tap on the shoulder to another blogger. Consider this scenario to further explain trackbacks:
Imagine you are reading your friend Bob's blog about the New York Knicks. Bob published a great post about a recent game between the Knicks and the Orlando Magic called The Knicks Rule.
Now, imagine you write a blog about the Orlando Magic, and you decide to write a post that talks about Bob's The Knicks Rule post. As a courtesy, you could send Bob an email to let him know you wrote about his post on your blog, or you could give him a call. Luckily, the blogosphere makes that courtesy call a lot easier and gives you an opportunity for some self promotion, too.
To let Bob know you wrote about his post on your blog, you can link directly to his The Knicks Rule post from your own post and follow the steps in your blogging software to create a trackback link on Bob's post.
A trackback creates a comment on Bob's post with a link directly back to your new post! Not only have you completed your courtesy call with your trackback, but you've also put your link in front of all of Bob's blog readers who just might click on it to see what you have to say about the topic. It's simple and effective!
How Can I Create a Trackback?
If your blog and the blog you want to link to using a trackback are both hosted through Wordpress, you can simply include your link as you normally would in your post, and a trackback will automatically be sent to the other blog. If you and the other blogger use different blogging platforms, you'll need to obtain the trackback URL (or permalink) from the other blog post. Typically, this can be found at the end of the post (possibly through a link called 'Trackback URL' or 'Permalink'). Keep in mind, not all blogs allow trackbacks, so it's possible you may not be able to find a trackback link on some blog posts.
Once you have the trackback URL from the blog post you want to send a trackback link to, copy that URL into the 'Trackbacks' section of your original blog post. When you publish your blog post, the trackback link will automatically be sent to the other blog. Some bloggers hold all comments (including trackbacks) for moderation, so it's possible your trackback link may not appear on the other blogger's post immediately.
That's all there is to it! Trackbacks provide a courtesy tap on the shoulder and self promotion all rolled into one. By courtesy of Susan Gunelius