Internet Marketing is the process of increasing the business of a website through leads and traffic.Its a wide field which involves many categories.
SEO
SEM
SMO
E-mail Marketing
Please read the sticky threads at the top of this forum, and any other threads which interest you. These will provide you with a great deal of information. You will also find plenty of information if you search the internet. After that, if you still have any specific questions, then please feel free to post again. Meanwhile, I am closing this thread, as your question is too vague to attract any meaningful answers.