Buick Pontiac GMC and Porter Airlines not only made it to the top 10 list for the first time this year, but copped #1 and #2, respectively. Meanwhile, the chart topper for several weeks, Telus Mobility, dropped to #4, and Mattamy Homes zoomed 357 notches to take the #6 spot. Check out which other marketers heavyed up on radio, by category and brand, in the Toronto market this week.

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