Sphere Beta: New Blog Search Engine

I got an email announcing that Sphere launched in beta today. It turned up some interesting results that technorati didn't have. I especially like the ability to set the search window and to sort by relevance. This is a crowded space though, so I'm not sure what the real differentiators are since they are so late to the game. According to their about us section, Sphere:

• delivers the most relevant, timely and authoritative posts and blogs on any topic;
• indexes and searches the full text of each post, not just the feed contents or the home page;
• allows you to search by relevance and time;
• uses content analysis to blend related mainstream media with blog results for a complete picture

They must have paid a pretty penny for the domain name as well.

Sample search results for a "4info" search on Sphere below: