Stealth Search Engine Blekko Raises Another $2.5 Million

Stealth search engine Blekko, which we’ve been tracking since early 2008, has closed another $2.5 million in funding, bringing the total raised to $20 million. This most recent round, says CEO Rich Skrenta, was a inside round led from existing investors USVP and CMEA Ventures.

Blekko is taking their own sweet time to launch, so don’t expect much more from them until they are good and ready. In the meantime, they’re hiring like crazy.