I am starting a website about building your own online business. I would like to have a tools and research area where visitors can come and use tools that will help them in building and operating a online business. Where can I find/buy tools (or calculators) with embedded codes so that I can put it on my website. I would like tools for things like SEO and rank checkers example: http://www.getrank.org/ . I would also like to find startup calculators for businesses and tools that will help you find stuff like niche research and business planning. Thank you your help would be much appreciated!