New York Post: Sorry, SpongeBob. Nickelodeon no longer rules the kids ad market. Unable to count on youngsters parking themselves in front of the TV for shows like “SpongeBob SquarePants,” Madison Avenue is accelerating the move of money out of Bikini Bottom. Nickelodeon is on track to pull in $862.9 million in ad revenue this year, down 11% from $974.8 million in 2014, according to SNL Kagan. That’s nearly double the previous year’s 6% slide. The Big Three — Nickelodeon, Cartoon Network and Disney — have garnered an outsized share of kids marketing, but the addictive pull of Netflix, Minecraft and newer forms of entertainment is loosening their grip.