One of the services I signed up with are the Performancing Metrics. I'm for sure not the target group, but I'm interested! ;)
So, you're being tracked by some javascript and cookies for now. This might change any time. For being fair, I opted in for making my blog-metrics public. Though it's pretty inconvenient (really frequent updates without much reason), you can get them as RSS from here:
http://performancing.com/rss/alexander-mette.de
For all Tikians out there - for now I just added the needed ))JavaScript-call(( to tiki-view_blog.tpl and tiki-view_blog_post.tpl.