In the spirit of continuous improvement, below is a list of services that you can use to analyze and improve your website.

Website Grader (www.websitegrader.com)
This is a great for revealing the basic SEO improvement opportunities of your website.It analyzes your meta tags, domain name setting, contact forms, blogs rss feds and more. Try to get your score above a 95%.

Quarkbase (www.Quarkbase.com)
Similar to Website Grader, Quarkbase automatically reviews your site and aims to give your all the “details” of your site. This grab your META information Social popularity in social networks, traffic data from Alexa, company info from zoominfo, technical details and more. The difference between Quarkbase and WebsitGrader.com is that Quarkbase does not offer suggestion for improvement.

Browsershots (www.browsershots.org)
BrowserShots is a tool you can use to ensure cross browser safe design and functionality. This is importortant as more and more people use safari and firefox for web browsing.

spellr.us (www.spellr.us)
This services reveiws your website on a regular schedule and sends you a report of all of the misspellings. It allows you to keep custom dictionaries per site to reduce false positives. I am in the beta of this services and it has already proven very useful. I’m just hoping the prices on this are not too high once it is officially released.