Hotels.com is offering up to 30% off select hotel stays during its Summer Giftaway. And for a limited time, book a select hotel stay of two nights or more and get a FREE $25 gas card when you use coupon code: ROADTRIP at checkout. For select 3-night hotel stays of $450 or more receive a FREE Amazon Kindle eBook Reader when you use coupon code: BOOKWORM at checkout. Some restrictions and blackout dates at certain hotels may apply. Book by June 27, 2011 for hotel stays through July 31, 2011.