Roberto, that google reference is pretty interesting. They provide a .jar file that provides access to their soap interface using java. I added the .jar file to the nsjava classpath and created a simple tcl script to search google using nsjava and it worked. The demo dumps the results to the aolserver log file (writes to stdout go to the log), but the googleapi soap api is completely documented, so it appears that it would be easy to write an nsjava tcl script to get the search results and query the results for individual pieces of information. I'm going to play around with this some, as it looks quite interesting.
The googleapi demo also includes a .net example and a perl example.