Statcounter: It is a visitor tracking tool similar to Google Analytics. It gives more detailed insight for some behavioral data than Google Analytics. The free version has a limitation according to which it removes historic data after a predefined time.
The exact same content on 2 different pages may bring Panda penalty. Check 2 different URLs to see how similar those are to take proper steps and avoid possible penalty.
It is the only link building tool I’d like to recommend. It gives possible link building opportunities on the web based on your keywords. It is not 100% accurate, but it gives a good insight of new sources where you can go and build links.
What is LSI: LSI means Latent Semantic Indexing. This is related to finding related keywords by various factors such as relevancy,meaning and thinking of individuals.
Deep linking refers to the process of building links of the internal webpages directly on external webpages. This helps to redirect traffic directly to the product page of your website from external domains.
Black hat seo techniques are good to build your keyword ranking faster in search engines and generate sales. But these techniques are not favored by search engines and your website can be penalized for these techniques.