Social sharing site utilizing metadata

I would like to hire a developer to assist in designing and developing a website solution for a social-sharing and metadata aggregation. The idea is to allow users to link to, import, or upload any various forms of media (e.g. photos, videos, sound files, etc.), or data objects (import contacts, addresses, etc.) and categorically @tag them so that they may be then grouped, shared, etc. An explanation from our current placeholder site is below. Please note that the first version of the site is independent from mobile, though the two should work interchangeably. I would like quotes for just the website development for now, but if you as a developer are capable of doing both web and mobile (iOS AND Android), then please feel free to quote for both and notate as such. Graphic design can be provided but use of modern design concepts and knowledge is a MAJOR plus. Examples needed! ================================================================================================ What started out as "Tag Your Life" is now simply called "tagged@" and allows you to tag and categorize people (contacts), photos, songs, videos, websites, places you've visisted, and more - all via web or mobile. Have a friend who gives great advice? Tag them "wise". Having a bad week in your fantasy sports league? Reach out to your friend tagged "sports guru". So you want an example? Sure thing! Let's say you and your friend Rob are about to take a trip to Las Vegas - so much to do - so much to see - right? Well, during your trip, you can take photos of the lights, record the water fountain show at the Belagio, or even recreate your own 'Hangover' movie, if you so please. But now you are off the plane and back home and would love a way to categorize all of that trip easily so you never lose out on a photo, a video... a moment. Here is where we can help. Use tagged@ and create a new tag called "vegas" and in it, you can add photos, videos, your friend Rob, check-ins, and more. Want to share that "vegas" tag with Rob? Sure thing! You could even share the set of stuff you tagged with Rob easily via web or mobile. It starts with rethinking why we scroll through an alphabetic list of names in our phones or address books. Who just blew a tire and thinks, let me go through all the list of people I know, alphabetically, until I find a match to someone who can help me? Our brains don't work that way - so why does our mobile, contact, and address book experience work that way? Sure you have to categorize and order them somehow - so why not tag@ them and make finding what you need a lot simpler? The possibilities are endless." ================================================================================================ Process flow would be as follows: 1.) User creates account or logs in via Facebook, Gmail, etc. 2.) User chooses specific username and password for tagged@ website. 3.) User can choose to "import" or "upload" things identified as taggable objects (contacts, photos, videos, people, places, music, etc.) 4.) User individually (or bulk) tags items with specific user-defined tags 5.) User has the ability to share tagged items within the tagged@ website, or via other social networking sites (Facebook, Twitter, etc.) 6.) User can add/remove friends, grant 'tagging' access to others (allows other people to also tag the user's taggable objects) 7.) Users can hide/show, share an entire tag (e.g. @VegasVacation, @SpringBreak2013), or share specific objects from the tags URLs might be structured as follows.... [login to view URL] -- this would share all items tagged as Vegas Vacation for user BlackJack23 [login to view URL] -- this would share all photos tagged as Vegas Vacation for user BlackJack23 [login to view URL] -- this would be user BlackJack23's user profile page. It would show items such as: - Recently Tagged, Tag Groups, Popular Tags, etc