So what is the online user really like? Some current snapshots of Internet usage and activity are offered by Nielsen Wire.
Consider the results of the latest annual study: 2015 UPS Pulse of the Online Shopper. Earlier reports: 2014 | 2013
The top 10 or 20 sites in different categories are tracked monthly by Hitwise Data Centers from Experian.
Traffic patterns and some audience demographics for individual Websites may be found at Alexa Site Information, at SimilarWeb, and at StatsCrop.
Calling itself "Trends & Statistics: The Web's Richest Source," ClickZ Stats & Tools (formerly CyberAtlas) can answer questions on:
Also, selected articles on Internet Users are available for free at eMarketer (most content is fee-based).
Internet usage and population estimates by country are available at Internet World Stats.