When working on its PhD thesis about "Using Search Engines for Discovery Information Retrieval" at the Artificial Intelligence lab, Ori Allon developped the Orion Search Engine. He patented a new way of exploring the web that could revolutionise existing search engines, according to the Allon's university press release [1] back in septembre 2005. (UNSW: University of New South Wales, Sydney, Australia).

As that algorithm could improve the relevance of searches, Google [2], Yahoo! [3] and MSN [4] were very interested. And guess what? Google hired Orion's creator and acquired its algorithm [5]. If you think Google already has relevant results, you're probably right. And it's likely to be improved further. Read the SearchEngineWatch comments [6] for more informations.

Refs 

• UNSW [7] :
  New search engine 'revolutionary' [8]
• Sydney Morning Herald [9] :
  Google wins rights to Aussie algorithm [10]
• SearchEngineWatch [11] :
  Google Hires Orion Search Engine Creator; Gets Extraction [12]