The Techmeme Leaderboard lists the sources most frequently posted to Techmeme.
This particular version corresponds to the 30-day period ending September 13, 2012.
Sources are ranked by Presence, the percentage of Techmeme headline space a source occupies over the 30-day period. "More" links are not taken in to consideration here — only full headlines are counted.
For more information, see our original announcement from long ago.