Description (green markings) of the above screen shot:

ADROTATOR:
The 'Adrotator' universal site placement automatic display of several ads and rotates each time user's browser invokes page or refreshes page.
Placement at top of page dimensions: 468X60 pixels

SQUARE BUTTONS:
Ad space on either side of the page placement at bottom of page: 125X125 pixels.

MICRO BUTTONS:
Ad space at the extreme bottom of the page: 50X40 pixels.