Keyword suggestion tool

How do you know what keywords would work best for your website? What is the focus of your site: news, videos, recipes, or all of them? If you need keyword suggestions try out Ubersuggest which allows you to choose a category to get suggested keywords. This tool makes use of Google Suggest and other keyword suggestion services. Give it a try now!

http://ubersuggest.org/

Keep Track Of Your Content's Keyword Density

If you update content on your site constantly, then you should always be aware of the frequency of the keywords you use. This Keyword Density Tool will instantly calculate the five most frequently used keywords in an article.

http://www.mikes-marketing-tools.com/keyworddensitytool.php

Crawl Your Site With This SEO Simulator, Diagnose Problems & Improve Your Site's Optimization

The Screaming Frog is a SEO Spider that you can download and use that will crawl your site for links, images, CSS, and present them all as a search engine spider. It will show you any SEO issues it finds, allowing you to make key improvements for your optimization efforts.

Download link: http://www.screamingfrog.co.uk/products/seo-spider/ScreamingFrogSEOSpider-2.11.exe

Compare The SEO of Two Sites

If you're wanting to research competition or would like to compare your own websites, then use this Side-by-Side SEO Comparison tool. This allows you to compare the major SEO factors across five different websites. You can view them together, providing added insight on how to improve your campaign.

http://www.internetmarketingninjas.com/seo-tools/seo-compare/

Create Optimized Images For Social Media & Web Use

Images make up a huge portion of your website, from a layout & file size standpoint. It's vital to make sure your images are optimized for use in either social media or web. With this Social Image Resizer Tool, make sure your images are optimized and being used efficiently.

http://www.internetmarketingninjas.com/seo-tools/favicon-generator-crop-images/

Traffic Estimator

Before adding keywords to search campaigns, use the Traffic Estimator to see how they could perform. 

https://adwords.google.com/ko/TrafficEstimator/Home?__c=6707682641&__u=3381427001&__o=cues

Adsense Calculator

The AdSense Calculator helps Google AdSense affiliates understand what affects their earnings by letting them experiment with values. 

It also allows Google AdSense users to take their current statistics and calculate how much they can expect to earn daily, monthly and yearly. Site owners who are considering implementing AdSense on their site(s) can also use this tool to estimate what results they are likely to see.

http://www.seochat.com/seo-tools/adsense-calculator/