1. Listen to what people are saying Twitter is a great tool to find out what people are saying about your company, products, or services.  Some free tools made available to you are:

Google has recently released a free application for mobile phone users that will allow you to broadcast your destination and invite your friends to see where you are.  After locating them on your phone’s “Google Map” you can then 'click' them and SMS, IM, email or place a phone call – or just show up at their destination. Latitude uses technology to judge a user's location by GPS satellite and also by proximity to mobile phone towers and wireless networks.

You may have noticed in your Google Analytics some new features, some of which are in "beta" (which in Google terms pretty much means they're stable.  Remember how long Gmail was in beta for?).  One of these new features should appear in the top right hand corner of your reports called "Advanced Segments".