From 9to5Toys.com:

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Today only, Best Buy takes 20% off $100 iTunes gift Cards, both physical and digital delivery. Note that international US iTunes users are eligible to purchase digital because the gift cards will be emailed for redemption but must use a US credit card or Paypal.

iTunes gift cards are good for Mac Apps, iOS Apps, iTunes Music, Videos, iBooks and more.  You are basically getting 20% off any media you’d buy at Apple.

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  • iTunes eGift Cards for 20% off: $25 eGift Card for $20, $50 for $40, more (9to5toys.com)
  • Get 20% off iTunes eGift cards at Best Buy (Digital Delivery) today until 7PM ET (9to5mac.com)
  • iTunes eGift Cards: 15% off, $25 eGift Card for $22, $50 for $43, more (9to5toys.com)
  • iTunes eGift Cards for 15% off: $25 eGift Card for $21, $50 for $43, more (9to5toys.com)
  • 15% off iTunes eGift Cards: $25 gift card for $21, more (9to5toys.com)
  • Three $10 iTunes Gift Cards for $26 + free shipping (9to5toys.com)
  • 15% off iTunes Gift Cards (9to5toys.com)
  • 9to5Toys: 20% off iTunes gift cards, Minis starting at $551, iMacs at $1086 (9to5mac.com)
  • $50 iTunes gift card for $40 delivered through email (9to5mac.com)