General Support: Search another plogger from my local plogger

We are trying now to make attempts at linking up multiple plogger applications from various offices. What I would like to do is have a button called "search all" and the "search all" then passes the search word to the other ploggers. I was thinking of doing this at first in a work around style like I do with google maps till we figure out a better way. What that means is on clicking search all you open up X separate windows which hare passed via php like

http://website1/?level=search&searchterms=fish
http://website2/?level=search&searchterms=fish

THe code I use to do this for the google maps is

function MakeMapURL($exif)
{
if ($exif['EXIF_lat'] > 1)
{
$long=substr($exif['EXIF_long'], 0, -1);
$lat=substr($exif['EXIF_lat'], 0, -1);
return "<a href=\"http://maps.google.com/maps?q=".$exif['EXIF_lat_ref'].$lat.",".$exif['EXIF_long_ref' ].$long."&z=5"."&spn=0.0.,.0.0&t=h&hl=en\" target=\"_blank\">View location in Google Maps</a>";
}
}

I basically set up the site maps.google.com and then fill in with the information I need (here its information relative to the picture, lat and long). So what I would like to know is what is the search box called so that I can build the above function but call whatever is typed in the search box to pass that input to 1 or more windows and open up their search results page.

If anyone can answer this or tell me a better way that would b great. The goal is to us any plogger to search other ploggers that are not local.