Build analytics tracking website, - HIGHLY SKILLED DEVELOPERS ONLY -

Hi, I'm looking to build a website similar to social analytics websites that are around (ask me for examples) Where the site will be able to use Twitter, Facebook, as a connection to push keywords for relevant data mapping, This will use a keyword to show: how many people searched it, liked it, talking about it, etc. (like google analytics) We'll also like to employ other big time websites as a source of information with key word searches. The site will be subscription based, offering the service for free with limited functionality as well as yearly based subscriptions (premium and advanced) that will increase in functionality to the user. This will mean the site will have some sort of profile for individual users who could use their Facebook accounts to sign up etc. as well as checkout functionality for the subscription based offering. I know this as been done before however I have a different concept for this which is why I'd like to replicate it, I'm sure given than we have many API's etc. available it should be fairly small project to develop for an experienced developer, Everyone looking to apply for this project WILL and MUST share examples of their works and must be willing to participate in a email briefing when I am seeking to find the suitable candidate for this project. I have limited budget for this and want the job done right from the start. No novice or amateur developers if possible, Will be reviewing every 24hrs, Looking forward to hearing from you!