I'm in the process of making a app that I'm attempting to try and detect Bluetooth devices, which I want this app to store data from these devices and store it on a server host, so I would need to make a program that host and RECORDS data as well, also I would like to have a website that can share information to the app, for instance you could go to the forums from the app other than having going to the website. So essentially I need to know what programs I need and what program languages I need to use for the app, and program. Also if anyone knows how to get all these communicating please share.Thats a large project.

You will need a Web Server such as Apache for the devices to connect to in which you write your application interface in say PHP programming language for the interface, as well as a Database in which I would suggest MYSQL which integrates well with PHP and some good books are out there on the subject. You can have 1 computer acting as a Database Server as well as Web Server. You can also have PHP code that goes out to websites, executed at the server side out of view from the client connection that requests the info, in which information requested / farmed from websites of choice are populated to your own dynamic HTML application layout with information harvested off the web from as many sources as you want to have all data on 1 page for example etc.

As far as detecting Bluetooth devices and and storing data from these devices.... ( I haven't played with this yet to advise to much specifics on this. ) But I know that Bluetooth devices have addresses that are unique and so you can use that as the ID for the device to keep track of what device is which with this unique ID. You would also need to have a service running at the same computer that runs as a web server/database server that is polling looking for NEW Bluetooth devices to establish a connection with etc. This service can be written in a number of languages of your choice some EASIER than others depending on what you are doing and personal preference if you happen to me familiar with any of these languages. I have edited/created serviecs for the following languages ( not for bluetooth but other reasons ) and can see this performed with .Net languages like ( Visual Basic, C++, C# ) as well as Python, and Delphi, but once again I have never made or edited services that interface with Bluetooth to assist in any helpful depth other than my limited knowledge.
Appreciate it. Your advice was very helpful GOT a huge jump into the project today thanks to you.