Our FactBites site is enjoying growing traffic, and I've just read a great review on the blog of Matthew Hurst, Director of Research at Intelliseek:

The results that Factbites generates are still extracts from web pages, but they are of far higher quality than the summaries that main stream web search engines provide. By focusing the technology on passages that make statements about the topic being searched for, the user experiences a far richer response. It should be noted that this type of interface has the potential to change the way in which searches are performed as the search engine is now doing more of the heavy lifting and is not trying to guess the intention of the user.

The site also has an In The News feature now, linking to the recent topics.