Nielsen (NetRatings)
Nielsen//netratings services define the global standard in online audience measurement. you can rely on the syndicated, customized media and market research to stay informed about your competition, understand your audience and engage your customer. each service-tailored to a particular research need-features online data delivery 24x7; timely, written analytical reports; and one-on-one consultations with our industry analysts.
http://www.nielsen-netratings.com/
IndexTools
IndexTools
http://www.indextools.com/
Google (Google Analytics)
Google analytics makes it easy to improve your results online. write better ads, strengthen your marketing initiatives, and create higher-converting websites. google analytics is free to all advertisers, publishers, and site owners.
http://www.google.com/analytics/
Coremetrics
Coremetrics
http://www.coremetrics.com/
Omniture (SiteCatalyst)
Web analytics and online business optimization platform by omniture. web analytics, online business optimization, search management, and more.
http://www.omniture.com/
SAS (Web Analytics)
Sas business intelligence software -- 30+ years of experience and 40,000+ customer sites worldwide. view success stories, analyst reports & demos.
http://www.sas.com/
Websidestory (HBX)
Web analytics and online business optimization platform by omniture. web analytics, online business optimization, search management, and more.
http://www.websidestory.com/
Speed Trap (Prophet)
Speed-trap, e-business intelligence, making a difference to your online performance and effectivness
http://www.speed-trap.com/
Site Intelligence (VBIS)
Site intelligence transforms your online business data into accurate, adaptable
and actionable information ensuring your online marketing and e-business initiatives deliver measurable and quantifiable
returns on investment.
http://www.site-intelligence.co.uk/
WebTrends (Marketing Lab)
Web analytics and web statistics from webtrends, the worldwide leader in web analytics. accelerate your conversion rates and web roi.
http://www.webtrends.com/