Searches tried:
UL, UL 790 (an engineering standard), venture bros season 3 torrent, cello music, tomshardware
each of these is reflected in my comment below.
clusty has some interesting things that google doesn't. However, it is not that accurate. I dont' know what searches you've done but I've done everything from generic to politically sensitive issues and found far more accurate results on google.
Cuil, is completely useless and the amount of results is a lie/often overstated. They will take 1 result and turn it into "1500" somehow by counting every image and link on a website as another result for the same website. You can't get more than 50 pages deep on cuil, it simply won't let you. Whoops! I think the total results is probably in the realm of 200 thousand.
Kartoo, won't even work without flash enabled. I refuse to play into the need for javascript or flash just to do a damn search. It is a text based search we are doing.
Mahalo is so inaccurate it's retarded. I get like 6 results for stuff, but it does give me the option to "Create" the page, whatever that means. As you editors admitted yourself, it's useless.
Powerset apparently can't do in detail specific topics that google covers well such as UL 790 and venture bros, you just see nothing. Let's go with "Crap, yet again".
Trexy has an interesting idea, but it needs refining. No valid/successful results, though.
Wikia crawls google and yahoo. Also needs java to run. remind me again why we HAVE to have java for search? Results were horribly inaccurate too.
Honestly guys, whatever drugs you are smoking when you write your ridiculously positive reviews please share them as I would like to have some of it too.
/opinions my own, not my companies, yadda