Main developmens in marketing using Google:
Category 5 Alert for all UK companies using Google Adwords.
Importance of Universal search
New Google Analytics Options
I have also noticed these new keyword analysis tips from Google and which complement my keyword analysis tool tutorial
Google also released their Google User Experience Guidelines principles which will be involved to anyone involved with web design from commissioning to implementation. This applies not only to the search experience but especially to the experience of Google Applications such as Gmail, Docs, etc.