Sphere provides supplemental contextual content to some of the top sites on the Web. Their core technology is a continuation of their founders' work at early blog search engine Waypath. Sphere's core service provides search keyword search results against recently published stories from blog and news sites.
$3.9 million raised over two rounds.
- $500,000 - April 2005
- $3.4 million - May 2006
Startup Search score