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When it comes to infringement, that requires detailed analysis of the patent claims, it's not something that can be spoken of generally or through a web services like this, you will need to hire a patent attorney and it will cost a considerable amount of money depending on how many patents need to be examined. You need what is called a "freedom to operate" analysis, which is what people do before releasing a product or service to determine whether it may be infringing a patent, which requires construing the claims and comparing them to the website you intend to create. As far as whether your new approach is patentable, the legal standard is that it must be novel and non-obvious to one of skill in the art....and again, you will need to meet with a patent attorney to discuss the details of patentability and whether you should file a provisional or utility patent. An attorney-client relationship is required in order to keep your disclosure confidential.
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