Google has launched an enhanced blog tracking service, which allows user to find out worth reading comments among a bunch of them, AFP reported, according to the article posted on Yahoo Tech News.

The new service, called Google Blog Search tool, was rolled out last week. It competes against Techmeme, Polymeme, Wikio and other "memetrackers" which enable sorting and organising blog posts into categories.

"We're pleased to launch a new homepage for Google Blog Search so that you too can browse and discover the most interesting stories in the blogosphere," according to Google product manager Michael Cohen in an Internet posting.

Google applied technology from its News site, to "categorise blog postings into clusters based on topics, stories or events", according to the AFP article posted on Yahoo Tech News.

For example, As of Friday morning, a leading category at Google Blog Search was the debate happening the previous night between US vice presidential contenders Joe Biden and Sarah Palin.

The service indicated that 1,620 blogs were compiled in the category during the last 19 hours, AFP reported.

The leading item was a Huffington Post piece that ex-officials from the administration of U.S. President George W. Bush believed Biden beat Palin in the debate.

"Grouping them in clusters lets you see the best posts on a story or get a variety of perspectives," according to Cohen in his online posting. "When you look within a cluster, you'll find a collection of the most interesting and recent posts on the topic, along with a timeline graph that shows you how the story is gaining momentum in the blogosphere," AFP reported, according to the article posted on Yahoo Tech News.