Place the ad beyond 800 x 600
Another strategy that may be less popular with
advertisers but can help the page retain its
cohesiveness is placing the ad outside of the 800 x
600 area. This allows the page to retain its
cohesiveness, and the content to take center stage,
especially for those users who have limited desktop
space to begin with.
In my experience advertisers tend not to like this
option since the ad may not be seen by all users.
However, other IAs have related that they are
beginning to see this type of ad more often. It may
be that as a greater percentage of users move
beyond an 800x600 screen resolution it is becoming
less of a worry for advertisers