We are developing a complex system consisting of many modules and submodules; one of them is what we call the 'study center' and it allows to organize and subscribe to material collected in other places on the website. Please refer to the attached PDF for more information - the introduction and section 1 provide a general overview of the entire system, and section 5 describes specifically this module.
For more information see the attached PDF. Please read the introduction and section one in order to get a better understanding of the entire system, and section 5 for a description of the study center. Everything else describes other projects which may be related to this project (you will find out by reading section 5). Some of them are also put online today, so feel free to also place a bid there.