Do not reveal personal information inadvertently. You may be "shedding" personal details, including e-mail addresses and other contact information, without even knowing it unless you properly configure your Web browser. In your browser's "Setup", "Options" or "Preferences" menus, you may wish to use a pseudonym instead of your real name, and not enter an e-mail address, nor provide other personally identifiable information that you don't wish to share. When visiting a site you trust you can choose to give them your info, in forms on their site; there is no need for your browser to potentially make this information available to all comers. Also be on the lookout for system-wide "Internet defaults" programs on your computer (some examples include Window's Internet Control Panel, and MacOS's Configuration Manager, and the third-party Mac utility named Internet Config). While they are useful for various things, like keeping multiple Web browers and other Internet tools consistent in how the treat downloaded files and such, they should probably also be anonymized just like your browser itself, if they contain any fields for personal information. Households with children may have an additional "security problem" - have you set clear rules for your kids, so that they know not to reveal personal information unless you OK it on a site-by-site basis?

The general belief, supported by many of Putnam’s cited studies, is that people are less connected or engaged in their communities.  The example, highlighted by Putnam’s title, is that while more people are bowling in America, fewer belong to bowling leagues.  The concern is being less connected may lead to loneliness and other issues.

China is the world's most populous country with over 6 billion people. Of that amount, over half speak Mandarin. With more items coming from China, it might be imperative to have some basics of the language.

Out of personal curiosity, more than anything else, I decided to start writing down all the countries I could find with the number of Internet users. Slowly, the list started to grow and the help of an Excel dBase became necessary. More countries were added and updated figures started to come in.