This page is a list of blogs which track developments in enterprise search technology and implementation. Some of these blogs are published by search vendors. Others (such as the Real Story Group blog) cover a range of topics including enterprise search. This list was revised in February 2013.
Aghy Blog Agnes Molnar
Beyond Search Stephen Arnold
Do More With Search BA Insight
Enterprise Search New Idea Engineering
Enterprise Search Lynda Moulton
Information Interaction Tony Russell-Rose
Noisy Channel Daniel Tunkelang
Ravn Ravn Systems
Search Chronicles Paul Nelson, Search Technologies
Search Hub Lucid Works
Unified Information Access Attivio
There is also a very good LinkedIn Enterprise Search Engine Professionals Group. Membership is by application.
For Microsoft SharePoint 2010 search the Technet resources are very comprehensive
If you know of other blogs or write one yourself please let us know