Build a Website

Hello, I need website with database. I need something similar to: [login to view URL] but i need to have posibility to add some new points of interest or easy import any base of points. Also i need 2 types of this web site, one for editor and one for user. Users can use web site in similar way like geonames, use search, and click any point for more information. Editor must have option to edit or add information to any point, delete or add new points. Also need easy to use data entry window then clicked on point. Thanks.