2. Banner Ads
A web banner or banner ad is a form of advertising on the
World Wide Web. This form of online advertising entails
embedding an advertisement into a web page
. It is intended to attract traffic to a website
by linking to the website of the advertiser. The advertisem
ent is constructed from an image (GIF, JPEG, PNG),
JavaScript
program or multimedia object employing technologies suc
h as Java, Shockwave or Flash, often employing animation,
sound, or video to maximize presence. Images are usually i
n a high-aspect ratio shape (i.e. either wide and short, or t
all and narrow) hence the reference to banners.