disspy - 9:42 pm on Jul 28, 2011 (gmt 0)
I had a slight burp for one of my keywords this morning. The panda 2.3 update was 2 weeks ago today. It appears that google does 2 updates per month, one big one, one minor one. I could be wrong but hey, it appears that way.
Yep, why not? Google Search Quality Team is obviously using agile development methodology, as we do. Probably they have short Sprints (iterations), with tendency to release new stuff in every 2 weeks. I guess they perform kind of A/B testings in monthly or quarterly cycles. The actual objective is to keep the search clean of spam, to provide reliable results and mainly to increase profits for their shareholders (read increase advertising revenue). Once they bring all these parameters to perfection and complete their mission, they will stop doing these ridiculous algo changes, in other words - never! ;)
Sure, it could be that. But if you properly used 301's, that shouldn't be the problem.
Unfortunately, this is the same date I moved off 2 large sections of the site into subdomains - so I am unsure if this somehow has something to do with that...