Disclosure: CollectiveRay is funded personally out of pure passion for helping people working with websites. We do however generate some income through recommendations of products. This means if you click on a link and purchase an item we link to, we will receive a small sum out of that sale. We usually partner with vendors to make your purchase cheaper than buying direct.
Set up a blog. These are a very good method for getting traffic to your site and they are free. You can start one at one of many free blog sites. Then you set up a feed for content and then go to other blogs with the same topics or fields of interests and read and comment on their articles. As well a lot allow you to post your article which gives you more traffic.
Embed Social sharing buttons in your website – Facebook, Twitter and Google+ (yes Google+ is important) as a minimum. You may choose to add other social networks which are relevant for your specific website niche. Avoid using a 100,000 social share buttons because that increases page load time, make for a horrible user experience and will decrease instead of increase your traffic including your social media traffic.
Websites produce traffic rankings and statistics based on those people who access the sites while using their toolbars and other means of online measurements. The difficulty with this is that it does not look at the complete traffic picture for a site. Large sites usually hire the services of companies such as the Nielsen NetRatings or Quantcast, but their reports are available only by subscription.