Banners can help you advertise and promote your products,sites or whatever you want to promote on thousands of web sites all around the world.

If you've spent any time surfing the Internet, you've seen more than your fair share of banner ads.
These small rectangular advertisements appear on all sorts of Web pages and vary considerably in appearance and subject matter, but they all share a basic function: if you click on them, your Internet browser will take you to the advertiser's Web site

Advertisement using text-based hyperlinks

Text-based ads, although common in email, have been dominated on the Web by their graphical-based counterparts.
Text ads are a simple and cheap method of promoting your website to thousands of Dave Matthews Band fans.
Affiliate marketing is one area where text ads have flourished