Startup Idea : Postcard style travel stories

I want to create a social media platform that brings back the postcard genre in an online environment. It will be sort of a tumblr and twitter mix but only for travel stories. People having accounts on the platform will be able to post postcard style pictures with a unique story about the place they travelled to or an interesting experience at the place they travelled to. Story will be limited to certain number of characters such as in twitter. I have basic knowledge of programming so I need people to assist with platform development, particularly, database hosting, server management and website security. I also welcome, assistance with public outreach and promotion. Thanks.