A stealth startup called Yapta (Your Amazing Personal Travel Assistant) will soon let you not only track price changes on specific flights, but it will also help you get a refund for flights where the price drops after you've already bought the ticket.
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CouchSurfing.com helps you make connections worldwide. You can use the network to meet people and then go and surf other members' couches! When you surf a couch, you are a guest at someone's house. They will provide you with some sort of accommodation, a