A tall, thin online ad unit (often 600 x 120 pixels) that is placed alongside content on a webpage in either the rightmost or leftmost column. Often contains GIF files and animation. (See “Sidebar Ad”).
A tall, thin online ad unit (often 600 x 120 pixels) that is placed alongside content on a webpage in either the rightmost or leftmost column. Often contains GIF files and animation. (See “Sidebar Ad”).