Something broke in the Analytics data center over the weekend. Several clients are showing zero traffic from certain Advanced Segments in the entire month of April. Oddly enough, we could see the data last week. The data is not lost, as we can still see the information using “Traffic Sources” reports, but our SEO reporting tool is dependent on the Advanced Segments for reporting. Our suspicion is there is a glitch in the new “Fast-Access Mode” which provides sampled data. The glitch is affecting both the old and new versions of Analytics and we’re hoping Google fixes it soon!