CHEER LEADING: Coach has tapped 30 fashion bloggers to rave about their faves. Glam, Purse Blog, What I Wore, I’m Not Obsessed and The Coveted are among the blogs chosen to participate in Coach’s Holiday Blog-a-Day initiative, which started Friday and runs to Dec. 19. The Holiday Blog-a-Day will be featured as a page on Coach’s Web site and on the firm’s Facebook page. Each day, there will be a choice blog focusing on product reviews, gifting, giveaways and pictorials. Each blog will interpret how best to wear the new Audrey Satchel and Sequin Amanda collection.