The British Internet Publishers' Alliance (BIPA) met last week to voice concerns over the 'unrestricted and seemingly unregulated growth of the BBC's online offering'.
BIPA, whose members include IPC, Emap, Guardian Unlimited and Sportal, held the press briefing to call for tighter control of the corporation's online activities.
The meeting was conducted a week before the Government publishes its Communications White Paper.
The briefing, which took place at the Commercial Radio Companies Association, focused on five recent BBC activities and proposals.
Rob Hersov, CEO of Sportal and the newly elected chairman of BIPA, spoke out against BBC director general Greg Dyke's recent proposals that BBC Online may one day accept advertising.
Hersov raised a second objection over the BBC's multi-million pound autumn ad campaign for its commercial site Beeb.com.
BIPA's third concern was over the corporation's plans to plough money into local and regional websites which, it stated, would compete directly with commercially funded sites such as those run by regional newspapers.
BIPA was also against the BBC's plans to spend pounds 50 million on regional sports rights, which 'could be exploited by BBC websites'.
Hersov also discussed the possible introduction of additional educational services to BBC Online, covering key areas of the curriculum - a move that worried Guardian Unlimited, which runs its own education site.
BIPA's report on the subject - entitled Fair Play on the Net - stated: 'BIPA argues that urgent Government action is necessary to ensure web publishers are operating in a free and fair market.'