Seems our anti-spam plug-in SpamLookup has been blocking a lot of legitimate trackbacks lately (thanks to Security Watchtower for the alert) - including all blogspot trackbacks!
The situation is now fixed, and we encourage blogs to start sending us trackbacks again so our readers and authors can follow the links and see what you've written.








A helpful hint to Haloscan trackback users on Blogspot, regarding trackbacks: you can make it a lot easier for your posts to receive trackback pings if you implement trackback autodiscovery in your Blogspot template. Proven to work
Thanks for the quick follow up and the fix, evariste and Joe.
Thanks to Bill for handling my concern and to the admins at Winds of Change for the quick fix. Keep up the great work.