Design and coding for web based service

We are looking for developers who could develop website analytics tool such as StatsCrop or Stat My Web. Main things we would like to see on this website: Daily Visitors Country Map, Domain Information, DNS Records, Website Metas, Keywords Ranking Position, Similar websites Websites on the same IP, Hosting provider, Server Location Map, Websites with similar rank, Colors used for this website (IMPORTANT!), Indexed Pages - Bing, Yahoo, Google charts with historical data. BackLinks, Pagerank - Historic data, W3C HTML Validation, Inpage Analysis, Directory listing. This means that this script will have to take information Google, Alexa, Bing, Yahoo, Whois services and other sources. Please let me know if you have developed similar tools or used APIs, JSON, cURL and other technologies to get data. Example: [login to view URL] No need for dedicated administration dashboard but I will need a way to limit adult related websites from the system.