Google has just launched a new homepage for its blog search that bears a strong resemblance to Techmeme, Memeorandum and their “memetracker” counterparts. The site displays a listing of the top stories from across a variety of topics including business, politics, technology, and entertainment.

Memetrackers identify emerging trends on the web, especially across blogs. They are often the best way to learn about breaking news stories, as they can automatically monitor hundreds (or more) news sources at once. Major news outlets and user-submitted content sites like Digg often trail memetrackers by days.