The purpose of the Dashboard is to put the most basic statistics about your conservation projects at your fingertips without having to generate reports or create queries. My goal for the Dashboard is to make it answer 90% of the questions you need to answer.
Check out the new LANDSCAPE knowledge base article on using the Dashboard.
The knowledge base is still in its infancy, but it will start getting filled in over the next couple weeks. The knowledge base is accessible from the main support page here.