To start blogging just add the 'Live Blog' Module to your web page. The directions come with it and everything you see on this page comes with it. Good idea to set aside one page just for blogging.
Click here for the guide
Creating tables with the new DNN 7 allows many options. For example take a look at Monroe Middle School and look under 'Homework.' They have created tables for teachers to place homework assignments in. So now the parents and students have a place to refer to. Great job Monroe! If you would like more information on using tables please see the HTML web page and look for the tab called 'Tables', or email for help. (firstname.lastname@example.org)
FYI: If you have an idea for adding something to your page and not quite sure how to do it, please ask. For instance photos, you could use a module called Ultra Media Gallery.