I've linked multiple blog posts (including some on my own blog) and a pingback has never apeared in any of the posts I have linked.
I just tested pinging back http://www.quietearth.us/webtools/pingback-tester.php and it didn't work.
Please help me.
By the way, I have successfully received pingbacks and (spam) trackbacks ;).
Any clue in where my problem might be?