Sping
Sping is short for 'ping spam', and are related to fraudulent pings from blogs using trackbacks, called trackback spam. Pings are messages sent from blog and publishing tools to a centralized network service (Ping Server) providing notification of newly published posts or content. Spings, or ping spam, are pings that are sent from spam blogs, or are sometimes multiple pings in a short interval from a legitimate source, often tens or hundreds per minute, due to misconfigured software, or a wish to make the content coming from the source appear fresh.
Spings, like spam blogs are increasingly problematic for the blogosphere. Estimates from Dave Winer's Weblogs and Matt Mullenweg's ping-o-matic service have put the sping rate -- the percentage of pings that are sent from spam blogs -- well above 50%. A study from Ebiquity Group, UMBC confirms that these numbers are around 75%.
The term was coined by David Sifry from Technorati in his February 2006 State of the Blogosphere report.