The topic tracker now has 22,000 indexed links, and the quality of results is slowly improving. One time I checked it today it was showing a link to a Sydney Morning Herald article at the top of the list, cited on 3 aussie blogs. This is a good sign that the topic tracker is starting divide “topical” links from regular links. It’ll still take the tracker a few weeks of finding, profiling and de-ranking regular links before topical links dominate the top 100. It’s certainly heading in the right direction.
I used to look at the likes of Blogdex and Daypop in awe of the dark science behind their indexing and link ranking engines, however having had a small crack at programming one myself the concepts behind these sites are quite simple. What is impressive to me at the moment as far as blog indexing tools go is Technorati. It has certainly raised the bar as far as blog indexing tools go, boasting over 413,000 watched blogs, 12 million active links and 42 million tracked links. It’ll be interesting to see how the fabbled Google blogging stuff stacks up against what has already been achieved by Sifry with Technorati.