Do you maintain full text indices for parts of the web and which parts, or does it all fall back to external services like Wikipedia search, Yahoo BOSS, etc?
If you have some indices on your servers, how do you build and search them? Is it your own technology, or open source (Xapian, Lucene-based, etc)? In what percent of searches do you display results from your own indices?
If you have some indices on your servers, how do you build and search them? Is it your own technology, or open source (Xapian, Lucene-based, etc)? In what percent of searches do you display results from your own indices?