In late September, Google announced it had been gradually rolling out Hummingbird, a completely new search algorithm. The algorithm emphasizes semantic search and focuses on understanding the meaning behind the user query rather than simply trying to match instances of words in its Web index.
Take a look at Danny Sullivan’s great FAQ for more specifics on what’s changed.
Hummingbird Unprecedented In Scope
This significant change in the core underpinnings of search has a lot of folks wondering about its impact on their business. (When combined with the recent spike in Not Provided, it makes for a pretty nail-biting time in the industry.)
We’ve been through algorithm changes before, but the substantiality of Hummingbird is fairly unprecedented.