I worked a bit more on my Google Maps + Street View script and now it can be controlled by passing arguments in URL, like this:
http://nekitamo.uuuq.com/gmap1.html?Lat=122.0237&Lon=37.3011&Grid=10&Spacing=0.0005Explanation of parameters:
- Lat/Lon: location of top left corner of the grid (marked with "0"),
- Grid: number of grid squares in each direction (horizontal / vertical = Grid X Grid)
- Spacing: grid step (or density) in degrees, used for both latitude and longitude
The page opens with map centered on square 0,0 using maximum available zoom in satellite view. A click on the map updates streetview in the right pane (if available for selected location) and opens an info blob with precise coordinates which you can save as KML file or open it in Google Earth. Here's a screenshot:

The whole idea behind my simple project is to enable someone acting as search coordinator (elevenaugust, for example

) to use simple forum links for referral and distribution of search areas, like this:
User1:
Square1,
Square2...User2:
Square3, etc...
I'm open for suggestions to improve my script, although it seems pretty usable as it is and I'm already using it locally (it also works as locally saved .html file in the browser).
P.S. - it seems that my free hosting is down at the moment...
