Since then Feedster and Blog Digger have died off. Yahoo was never serious about it. IceRocket and Blogpulse were both sold and are now mostly buzz search engines that don’t remember anything more than a few months old. Blog Digger’s page is still up but doesn’t do anything. And Technorati, which once maintained a complete index of all syndicated sources, including all blogs from the beginning of its existence, turned into one of those “content” mills a few years back.