The average cost per thousand (CPM) for podcast advertising in May was nearly identical to April, dipping five cents, or two-tenths of one percent... the only time that has happened in the CPM rate history formulated by Libsyn Ads.
For campaigns with an upper limit of 9,999 impressions... campaigns of that size (1,000 - 9,999 impressions) dropped below the average cost for all sizes - the only time that has happened in the CPM rate history formulated by Libsyn Ads.
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