Ever wondered what a pingback is? For example it looks a little like this:
New pingback on your post #4 “Course Guide, Information Booklet, and Text”
Website: Math IB H2 – Upcoming Quiz (IP: 18.104.22.168 , serv01.m380.sgded.com)
[…] […] 6.5 – 6.8. You can download the syllabus from an earlier post by Ms van on this blog: http://hs-math-ibh2.ism-online.org/2010/08/05/course-guide-information-booklet-and-text/ category: Peabody, van Nooten tags: combinatorics, probability, […] […]
Usually it’s no cause for concern, all it means is someone has linked to your post. In this case, one math post October 10th links to an earlier post from August 5th. You can tell who is linking to you, and if you don’t like the originating link, you have the option of deleting it in the links at the bottom of the message.
If you don’t want to allow them at all, you can disable them at the bottom of the Post window by un-ticking the box.