"Peter" wrote in message
...
Are there any companies out there which basically do the same thing
Arbitron does?

In small markets, there is one alternative.

Does Arbitron have any competitors?

Not now. In the past, since they started the current radio diary survey in
about 1965, we have had The Pulse, C.E. Hooper, Mediastat, Mediatrend,
Burke, Audits & Surveys, Birch. None won advertiser acceptance, or, in the
case of the first two, lost it due to mythology concerns.

In major markets, and among major advertisers, Arbitron has nearly universal
acceptance.