Chrome is a clear focus for Google. It is growing quickly and taking market share from other web browsers... and it represents a core component of other Google priorities: Google TV, mobile, web speed, apps, etc. Google is now advertising "the world's fastest-growing web browser" on Facebook with a handful of different ad units. Some of the ads promote liking the Chrome Facebook Page (now with over 3.2m fans!) and others promote downloading the "speedy browser built for the modern web".
Google also released a clever website to highlight the power of Chrome and get users familiar with the benefits: 20thingsIlearned.com. Very well done and is prominently featured on the Chrome Installation page:
Coincidentally, September marked Google Chrome's 2nd birthday. Google crafted a couple commemorative graphics for the occasion: