Only one-half ( 50%) of B2B marketers formally measure the return of their online marketing investments, but those that do say online is more effective than traditional marketing channels, according to a report by AMR International.

Budget size is closely correlated to the amount of measurement conducted by B2B companies. For example, only 24% of B2B marketers with annual budgets lower than $25,000 formally analyze metrics, compared with 85% with budgets larger than $2 million.

Below, other findings from AMR's report titled B2B Online Marketing in the US: Assessment and Forecast to 2013.