The ascent of blogs and other independent publishers
has expanded and revitalized political dialogue in the United Status.
While the “mainstream” media remains
the primary source of factural reporting,
they no longer own the agenda.
Appropriately, tapping a diversity of media sites
is essential to produce memeorandum’s
autosummaries of the most web’s most buzzed-about political items.

What exactly are these sources?
The memeorandum Leaderboard,
launched today, identifies 100 of them,
ranking sources simply by how much they’ve appeared on
memeorandum in the past month.
It updates every 20 minutes and offers archives of past days.
This follows the introduction
of a similar list
for Techmeme last week ennumerating leaders in tech reporting.

The memeorandum Leaderboard doesn’t tell the whole story of course.
For instance, influential curators of opinion
like Instapundit.com
don’t figure highly given
memeorandum’s preference for longer articles.
Yet it remains a handy portal to many of the sources
with the greatest role in
framing and shaping the national debate.