Value Investing News

We would like to create a Value Investing search tool that would provide consumers with a list of stocks along with 'margin of safety' data and 'rank' based on the consumer's selection of a list of parameters.
The database would consist of stocks from all over the world that are trading in major stock exchanges. The tool can also be used to find 'margin of safety' and 'rank' data of stocks that consumers already know about. This tool would be provided to consumers on a subscription basis.
We would like to know how useful this tool would be for the value investing community. Please provide your valuable suggestions and feedback.

Thanks
Harry