Internet Marketing is an all encompassing term for marketing online and offers a number of distinct advantages over traditional media marketing:
Email Marketing
Online direct mail has advantages over traditional direct mail campaigns of cost, speed of implementation and instantly measurable.
Social Media Marketing
This is not just about Facebook/Myspace et al, Social Media Marketing is all about facilitating collaboration between people on the web, engaging with the consumer and providing value.
Online PR
Developing optimized, appropriate press releases for online can get you global exposure that generates traffic and links.