bishopeous

I thought that WordPress was not sending trackbacks and pings. It turns out that Windows Live Writer was the culprit - well, OK it was me not filling in the right boxes in Live Writer. I assumed that WordPress would do all its great automatic trackback magic when I posted with Live Writer. This isn’t so. You need to fill out the trackback box at the bottom of the page

You also need to set up pings on the preferences page (tools -> preferences)

This site gives a run down on WordPress pings and a WordPress installation for testing pings and trackbacks.