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Alexa provides information about websites including Top Sites, Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Information and Search Analytics for SEM and SEO optimization. The Alexa Toolbar is a browser add-on that shows d...

Online regex tester, debugger and replacement tool with real time explanation, error detection and highlighting for PHP, PCRE, Python and JavaScript. Come and check out the free educational regex quiz!

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections to recommended job candidates, industry experts and business partners.

BestReviewDomain - best review and free analytic for webmasters that gathers detailed information on your domain : traffic details, Technology language, whois, ranking info, domain backlinks,domain IP, DNS record, optimization, network tools, seo too...

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Google+ aims to make sharing on the web more like sharing in real life. Check out Circles, Messenger and Hangouts, just a few of the things we've been working on.

Easily find more sites like those you like. Similar Sites helps you find related sites and alternatives based on community recommendations and computer analysis.

Statvoo is Realtime Website Analytics

Metricsbot is free website & app statistics and analytics platform, where you can find comprehensive metrics such as: traffic, visits, adsense information, pagerank, keywords, server information, dns lookup, whois, and revenue potential

A list of mostly liked photos and mostly followed users on instagram

Yahoo! Groups offers free mailing lists, photo & file sharing, group calendars and more. Discuss hot topics, share interests, join online communities.

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