Techmeme Leaderboard is a new rating service going live today according to TechCrunch in a post titled: Techmeme Leaderboard To Launch, Attacking Technorati’s Last Stronghold.

'… top blogs will be ranked on presence - “the percentage of headline space a source occupies over the 30-day period.” Discussion links are not taken into consideration - only full headlines are counted."

The problem I might have with this approach is that Techmeme doesn't capture a lot of technical posts and I'm disappointed in the level of traffic it drives.  Maybe with the new Leaderboard, Techmeme will drive more traffic than before…we'll see.