Nathan Enns, the developer of FyberSearch has let us know about few a new services and advanced features.
+ Results are now available in RSS format.
+ Domain Clustering: no more than one result per domain name is displayed unless the user specifies.
+ The keyword density option has been improved. It allows you to view
pages that contain your search terms at least "X" number of times.
More on the Fybersearch blog.