how to proceed further this gis project?

For my开发者_Python百科 company in house use i want to develop a gis project with simple goals.

1. To display all places with name wherever my company presents,over the normal country map.
2. Connect main office with branch offices graphically ( by line ).
3. By clicking a place user will be directed to a new page containing information about the place.
4. add new places graphically.

what I know/did little bit already:

1. working with LAMP platform on Ubuntu.
2. HTML,Javascript
3. Installed mapserver and able to re produce sample maps.
4. sucessfully installed Postgresql, postgis.
5. sucessfully loaded osm data into postgresql.(by osm2pgsql utility)

What I want to know

1. How to display osm data in browser as like google maps.
2. how to add new places graphically
3. How to connect two places by a line in map.

many Thanks .

You could look into client side frameworks like OpenLayers or more full solutions like geomajas you will still need to setup everything but these could provide you with what you need

more libs/apps/etc on osgeo