Social Media Tools - Free tools to help you measure traffic, sales and SEO ranking 
When it comes to measuring and tracking online and trying to determine what your return on investment is with social media, you first need to ask yourself why you want to participate in social media in the first place. If the answer is to build your brand and develop a loyal following, then you are in it for the right reasons. Currency in social media is found in both relationships and content.
Still, you can't improve what you don't measure. So if your goal is to measure traffic, sales, or SEO ranking, here are some free tools that can help:
- Google Analytics and Feedburner.com are essential, free tools to help analyze your company's website or blog traffic, subscriber count, and keyword optimization, as well as additional trends.
- Gr.aiderss.com allows you to enter a feed URL and returns statistics about its posts. The most popular statistic is based on how many times they are shared on a variety of social networking sites.
- GetClicky.com shows you every action a visitor makes and offers a dedicated iPhone version.
- Socialmeter.com checks your website's social popularity.
- Statsaholic.com compares rankings and other information on up to three websites at a time.
- Webslug.info compares your site's performance to any other site.
- Xinureturns.com is great for adding a URL and for receiving a load of useful statistics ranging from search engine optimization (SEO) to social bookmarking and more.
- Sometrics.com is an analytics site that measures your social advertising efforts.
- Pagealizer.com is a web analytics that actually suggest changes and optimizations for your pages.
- StatsAdvisor.com is another great web analytics that helps you track both online and offline advertising efforts.
- If your goal is brand reputation or customer relationships, you require a more qualitative measurement approach. Without some sort of benchmark, it's impossible to determine your ROI. First start by asking yourself a key question: Am I being talked about online within my industry or target market?