You can display the Blog block on Dashboard in main area (not the sidebar), which pulls a set number of Blog entries in it. But notice the title of the blog block displayed is named: News.
Thing is, you already have another block you can pull topics from forum called News also, which can be displayed on Dashboard in same main area. So you end up with two blocks on dashboard called News. Would it not be better to name the Blog block displayed on Dashboard main area either Articles or Blog Articles. To avoid having two duplicate blocks called News?
Alternatively, you could title the forum news block (Forum News) and other Blog block (Blog News)