and one of my favourites blog
AutoCAD is to expensive for you? Download DWG TrueView from Autodesk or search for a "Free DWG Viewer" on Internet.
AUGI (Autodesk User Group International) it is the greatest Autodesk forum.
Tools for AutoCAD users (Resources)
These are only a few of my 2D AutoCAD drawings.
Image size is 720x574 pixels. So, for a larger images, choose to see "View Image" from your contextual menu (Firefox) or "OpenImage" (Opera) or "Save Pictures As" (Internet Explorer).