Skateboarding mania this year has spawned a hum in skateboard-inspired apparel.

Skateboarding mania this year has spawned a hum in skateboard-inspired apparel, surging ad sales for industry magazines, a well-received film, and now a pileup of summer skateboard tours.

Pepsi-Cola Co.'s Mountain Dew brand, a longtime sponsor of various skateboard tours and competitions, this month kicked on the farther side its own, the Mountain Dew at liberty Flow Tour, visiting 12 cities with skateboard demonstrations and call in questions including a stop at ESPN's X Games in Philadelphia in August.

ESPN last week also announced details of its third annual Tony Hawk's