The URL www.blender3d.com
leads to www.blender3d.org
where it is implied that www.blender.org
are equivalent. However, www.blender3d.org
seems to be out of date and not at all the same as www.blender.org.
This is rather confusing for people following old Blender links.
This weekend it will be fixed.
blender3d.org will be the product site
blender.org the development site
blender3d.com might become redundant, but for the time being it will be forwared to blender3d.org.
at blender.org/bf/ all foundation relevant stuff will be stored. that needs to be rewritten as well...