Northern Light started in the mid-nineties as one of numerous search engines vying to organize the Internet in its early days. The website has gone through various forms, including a fee-based service, but will now be offering a free business search engine. The official launch is in mid-April, but is now available in beta. From what I've seen so far, this looks like an excellent resource for finding business-related content on the web.

Recent article from Information Today
http://newsbreaks.infotoday.com/nbReader.asp?ArticleId=41368

Northern Light search
http://www.nlsearch.com/home.php