Location Database

I am looking for a website that enables users to check for GPS lattitude and longitude on a map such like [login to view URL] Next (step), I want them to add data such like text information photos, and links to twitter, flickr, youtube and to websites. Next (step), users can save this into their defined category into the MySQL database of the website. Only editors of this category are able to add/edit entries. The website should be able to show public categories to all visitors and closed categories to members of those categories who are invited to join/view by the editors of the category. The website should have a decent, fairly simple, straightforward look. It should be possible to change the css and to put a logo in it myself. ## Deliverables **Frontpage;** Top of frontpage: Possibility to search for added categories; Possibility to register; Possibility to Log-in; In Between; Navigation Middle of frontpage: Map of the world (What are (open source?) alternatives to a google Map? Bottom: Navigation **Registration; **Name; Last name; Place; Country Birth date; Optional Facebook account