The increasingly popular vertical engine Answers.com has just announced a partnership with IceRocket. According to the news release, IceRocket will send visitors to Answers.com for reference material and Answers.com send "blog search" traffic to IceRocket. Answers.com will earn a slice of any revenues generated by referral traffic.
I'm assuming this means Answers.com will soon provide a "blog" search tab on their home page that will be powered with results from IceRocket. This is would be similar to what Answers.com is now doing with Shopping.com.
Answers.com integrates Google Web Search and AdSense on their site. About six months ago, Answers.com began providing dictionary definitions and related info to Google.