mikegogulski

Pingcrawl aims to replicate WordPress.com’s “Possibly related posts” capability. It queries Google Blog Search for related blog posts (based on tags, or the post title if there are no tags), tries to verify that they are pingback/trackback compatible sites and, if so, adds links to such posts to the end of each blog post where it is invoked.
Scope-limiting configuration options are included to enable Pingcrawl to fit any WordPress installation’s memory/execution time budget.
<h3>Licence</h3>
Pingcrawl is free software released under the GPL. If you find it valuable, you’re invited to make a <a href="http://www.nostate.com/support-nostatecom/" title="Donate with PayPal, MoneyBookers, etc." rel="nofollow ugc">small donation</a> toward its ongoing support and maintenance.

Pingcrawl

Pingcrawl adds a "Possibly related posts" capability by querying Google Blog Search for post tags and pinging the results.

David Artiss

Michael Adams (mdawaffe)

Some people really like that WordPress sends pings from your own site to your own site when you write posts; it gives them a trail of related posts.
Some people do not like this behavior; it clutters up their comments.
This plugin disables intra-blog pinging.
Once activated, there’s nothing for you to do. However, head to Settings -> Discussion and you’ll find a field in which you can, if you wish, specify more domains that won’t be pinged. Why? Well, maybe you often refer to other sites that you maintain or, particularly, you run a multi-site and don’t want each blog pinging the other – specify a list here and you’re sorted.
This plugin was originally developed by the awesome <a href="https://profiles.wordpress.org/mdawaffe/" rel="nofollow ugc">Michael D. Adams</a> and the iconography is courtesy of the very talented <a href="https://www.fiverr.com/jankirathore" rel="nofollow ugc">Janki Rathod</a>.
Please visit the <a href="https://github.com/dartiss/no-self-ping" title="Github" rel="nofollow ugc">Github page</a> for the latest code development, planned enhancements and known issues

No Self Ping

Keeps WordPress from sending pings to your own site.

Pingcrawl vs No Self Ping