I hesitated for a while because it was powered by Google to use it or include it in my "Apollo! Pack" collection because it was powered by Google- but this one stands out because it does a FAR better job of focusing the results. That is the key that makes this one stand out.
Differenzierte Suchmaschine auch in deutsch. Sophisticated search engine also in different languages. A better result if you're looking for more relevant results. "Web Security Guard" (Crawler Toolbar) says it has been positively rated so far.