My choice this week is the California Genealogical Society and Library (CGSL) blog, authored by Kathryn M. Doyle. The URL for the blog has changed recently - it is now http://blog.californiaancestors.org/. Here is their home page from this morning:
Kathryn and her society have tailored their blog to provide interesting and up-to-date information about society activities to their membership and their other readers (like me). I am not a member, but I enjoy seeing how the society brings in programs, speakers and does their library activites.
One thing that sets this blog apart from other genealogical society blogs is the liberal use of photographs to depict society activities. They have excellent photographers that seem to capture the best part of events and even daily activities. In this way, their blog is an extension of their monthly newsletter (which is available for email reception for anyone).
Several CGSL members created a terrific poster last year that was displayed and sold to researchers at the SCGS Jamboree and other events: