DoubleClick [DCLK] has asserted its presence as a clear industry-leading provider of ad sales representation and technology. At present, they only accept sites that generate several million impressions per month, or which target a desirable demographic group and display solid growth potential. Payment is negotiated on a site-to-site basis.
UPDATE December 12th, 2001: A series of seeemingly related developments and cutbacks has constricted DoubleClick's lossy media division during the bulk of this year, and at its close, all indicators suggest that the company could completely depart the media representation business shortly. Nevertheless, the firm's solid reputation and comparitively effective sales unit makes DoubleClick's media service worthy of exploration as a short-term representation option.