Market size: Large (> 10,000,000 people)
Investments required: Medium (< US$5,000,000)
People love to send and receive traveler postcards. Yes, various post stamps are important, but the message is more important.
e-Postcard service will have a great collection of great-view photos (places visited, festivals,...) and fonts to choose from. E-postcard send can insert his/her photos in any spot of the collage and add some photos from the database and a brief message.
Apart from the global online e-service, hotels, restaurants, puibs, museums, etc. could offer a customized service.