Banner exchange is one of the most popular free promotion tools today. You can drive a decent amount of traffic to your site for free. Display other site's ads on your site and they display yours. They are easy to use, just paste a relative HTML code (given to you by banner exchange program) into your web site, and upload your banner to banner exchange. That's all - you are ready to go. The script will automatically run banners on your and other web sites.
In my experience, a lot of people are more open about sharing traffic stats then you would think. You see this not just in interviews but if you peruse through the archived articles on a blog, there’s a good chance you’ll stumble upon a “blog in review” or “traffic report” post. With those stats, you can start to figure out how much traffic the site is getting today.
Web analytics is the measurement of the behavior of visitors to a website. In a commercial context, it especially refers to the measurement of which aspects of the website work towards the business objectives of Internet marketing initiatives; for example, which landing pages encourage people to make a purchase. Notable vendors of web analytics software and services include Google Analytics, IBM Digital Analytics (formerly Coremetrics) and Adobe Omniture.