SiteAuditTool.com - Generate Website Audit Reports
Q-Stats - Get free marketing insights for every question on Quora.
SEO PowerSuite - Get all SEO tools in one pack - download free edition of SEO PowerSuite and get top 10 rankings for your site on Google and other search engines!
Site Rank Data - View historical rank information of websites via time series charts.
SiteCheckerTool.com - Website Analytics & Tools
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.