To be core, the algorithm needs to be consistent enough to run by itself without much worry that it won't work right. Last week’s news that Panda is part of Google’s core ranking algorithm has gotten SEOs buzzing about what exactly being part of the core algorithm means. Now, Google has shared some more information about that, saying that the algorithm is consistent enough to not require many changes in the future and can run with less hand-holding. In a Q&A with Google’s Andrey Lipattsev, he spends a good amount of time explaining the confusion around what it means to be part of the “core” algorithm, and also why it is hard to sometimes define a Google update. The video starts at around 8 minutes in, where Andrey Lipattsev, a search quality senior strategist at Google, said in regard to what core means: It is less about the functionality, which means it probably doesn’t change that much over time, and it is more about how we perceive it,...