I've just finished watching a really interesting online course from Google, in the AdWords Online Classroom. It is a presentation with a lot of interesting information specific to mobile advertising in the mobile web, and contains Google's approach to this growing marketing sector.

The presentation starts with a lot of background information around the penetration of mobile, the mobile web, mobile applications, etc. 

Google then presents a range of background information around mobile search, where Google is the (surprise, surprise!) the dominating search engine, and a number of interesting statistics about how mobile search compares to traditional desktop search.

They discuss different mobile search trends and the different ways people are currently using mobile search on smartphones (they take high-end devices into consideration separately, namely the iPhone, the Android and the Palm Pre). 

Finally, there is a pretty detailed presentation on how you can set up mobile web advertising campaigns through your Google AdWords account, so as to take advantage of the mobile local advertising opportunities Google offers you. 

They round off the presentation with a range of seven tips for creating the optimum mobile advertising campaign through Google AdWords. 

To view the presentation go to the Google AdWords Online Classroom and click on the "Get started with mobile advertising" link in the "Free On-Demand Tutorials" section. I'd definitely recommend viewing this to anyone looking to open up their business to mobile web surfers.. It is targeted more towards business owners, and adwords campaign managers rather than a mobile marketer, but it certainly is recommended viewing for us lot too.