Internet marketing is a broad term relating to advertising or marketing online. Any efforts to market using the internet or email to drive direct sales would be considered internet or digital marketing. Internet marketing or online advertising is typically used in conjunction with traditional advertising such as radio or television.
There are many factors to take into consideration and there is no easy answer. It really depends on how competitive your niche is and what improvements need to be made to your website. Normally, your website will see improvement in the first month but there is no way to quantify that. Beware of any internet marketing company making any unrealistic promises. They could be using “black-hat SEO” techniques that could get your website penalized by the search engines or even blocked from search. Call us for a free website consultation so that we can give you a better estimate.