Uses email to send advertisements to customers (both potential customers and existing customers). However customers often see this type of
marketing as spam if it is sent as unsolicited bulk emails .

These are advertisements that appear at the
top of web pages or pop up on web pages. These are often animated to capture
attention.

A form of online advertising which involves websites or
web pages hosting ads for other companies. The website or web page provider will
receive a payment for every ad which is clicked on.

Companies can register with the bigger search
engines (Google, Bing, Yahoo!) so that their websites appear high up in a list of
keyword searches or pay for links that appear when a user does a search.�