61cm (24″) at 1920×1200 actually seems to be a somewhat less than ideal resolution now I have been living with it for a couple of years.
In theory you can have two full size A4 pages on screen, but in practice you can’t because toolbars and window borders take up some space.
Half the screen is 960 pixels which is too small for many web sites which assume at least a 1024 pixel wide browser window. Otherwise it would be perfect for having two browser windows open side by side.
Clearly the only option is to upgrade to a 28″ monitor :)