I have a project, where i will need to locate potentially a lot of people on a map of the USA. they will be over the entire USA, so i assume, that i will need to start by showing not individual pins on a USA map - but similar to Google Analytics - to start with States, and then drill down to a resolution that is low enough to see pins.
i will have my data coming from an MSSQL database - probably using ZIP codes.
1) can anyone point me in the direction of studying the basics here - or even getting some kind of off the shelf product.
2) can Google take ZIP codes as pointers, or does it need long/lat specifications?
3) are there other ideas to use - other than Google maps?