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FORTUNE — Millennium Media (MM), the No. 3 mobile advertising platform after Apple (AAPL) and Google (GOOG), issued its 2012 year in review report Friday. A few highlights:
- Although it lost market share in 2012 in terms of the number of smartphones and tablets sold, Apple is still the No. 1 manufacturer in Millennium’s ad platform and actually gained share (to 31.2% from 26.35%).
- Samsung came in No. 2 for the second year in a row. Although it grew faster than Apple (to 22.32% from 16.8%), its presence on the Web in terms of ad impressions is not keeping pace with its growth in units shipped.
- Amazon (AMZN) made it into Millennium’s top 15 for the first time in 2012. Its 1.08% share put it in 11th place.