Online Publishers Association

Spending on Paid Content Climbs 14%
The Online Publishers Association (OPA) has released its Paid Content U. (December 28, 2004)

OPA Releases First U.S. Market Spending Report for Paid Content
The Online Publishers Association announced the results of its first U. (August 6, 2002)

Online Publishers Association Founded
Twelve Internet content brands have announced the establishment of the Online Publishers Association (OPA), a new industry trade organization representing the interests of online publishers before the advertising community, the press, the government and the public. (June 25, 2001)