Google hones search for mobile and speed
Google Inc unveiled new features and technology to speed up Web searches and to make it easier for people to use its flagship search engine as they increasingly access the Internet from handheld mobile devices. Ref. Source 2
The new algorithms that Google implemented gives varying results than it did before. One thing I have been noticing since using the on site Google search box is that the way Google see's Forum Posts is not correct. The number of posts and date is not in line with the post. For instance a Thread may have many Replies but in the Search results it will only say 2 Authors and 2 Posts.
Google search recently made a new release that is causing people to wonder if their site will ever come up in searches anymore. Google is so heavily integrating its searches with its own site and software that your site might be second place even if its more popular. Not good Google!