https://www.fullstory.com/ What do you want to know about your customer experience?
SEO Spider https://www.screamingfrog.co.uk/seo-spider/ The SEO Spider is a desktop program you can install locally on PC, Mac or Linux which crawls websites’ links, images, CSS, script and apps to evaluate onsite SEO.
http://www.recommendedusers.com/ Select the topics you are interested in. Find a few people from the suggested users, then add them to your circles.
http://www.circlecount.com At CircleCount.com we count the circles in which you are included. This metric represents the number of persons who are following a user’s posts at Google+.
http://www.peekyou.com/ Free People Search Made Easy: Find friends, relatives and colleagues across the Web.