First, I have added Trackback using Haloscan - you should be able to ping a post's trackback URL found by clicking the link (a popup) at the end of the post. The standard Blogspot links remain as well for the Blogger users.
Finally, you'll notice a little break in my blogging - I'm heading back to the UK for a vacation and a friend's wedding. Should be back full force in just over a week (assuming my precarious visa situation let's me back into the US). So don't run away. And if you want to make sure you catch up with my writing as soon as I return, subscribe now by clicking this icon and selecting your preferred feed reader: