for small business, here is the list of seo tools

1. keyword planner
2. google analytics
3. page rank chacker
4. google adword
5. webmaster tools
6. social network

SEO tools that you can use for your websites are:
Google analytic.
Google webmaster.
duplicheaker.
Article spinner.
Google drive.
Etc.....

I agree with these suggestions. Good discussion.

May take recourse to means : Google analytic, Google webmaster. Google developers, SE/Directory submission, PR submission. link building etc.

Google analytics tools
Google webmaster tools
Google adword
Google adsense
Keyword planner

The best SEO tool is as follows-
Small SEO tools
Plagiarism checker.
Instantlinkindexer
Backlink link checker

Some tools which you can use for your SEO methods are:
Google webmaster.
Google analytic.
Google drive.
Spinner.
duplicheaker.
Etc.........

You can use the following tools:
Google drive,
Google analytic,
Google webmaster,
duplicheaker,
Spinner.
Etc.....

high quality content

Best SEO tools are as follows:
--Keyword list cleaner.
--Keyword suggestion tool.
--robot.txt tools.
--Meta tag generator.
--Typo generator.
Etc......

Google analytic.
Google webmaster.
duplicheaker.
Article spinner.
Google drive.