As a test, I downloaded files from HDtracks.com, an online retailer specializing in hi-res audio, plugged a device known as a digital-to-analog converter (DAC) into my computer and listened over earphones.

WSJ: Sonic Truth

For example, on a recent day, constructing the CNN.com home page required 161 files served from 25 unique domains.

ENGADGET: Amazon Silk browser spins a faster mobile web, courtesy of cloud servers (video)

As promised, Backtrace Security, a group of pseudonymous hackers formerly associated with the hacker collective Anonymous, published files earlier this week on BacktraceSecurity.com containing what the group says are identifying details and communication records of members of Anonymous.

FORBES: Anonymous And Ex-Anonymous Hackers Wage A War Of Identification

You will see hundreds of these icons offering RSS, or Really Simple Syndication, which is a way to get information sent to you, such as articles, classified ads (say from Craigslist.com), hotel schedules or even audio files (or podcasts).

FORBES: Magazine Article

When you're online and signed in with a free Microsoft account (such as Hotmail, Live or Outlook.com), Office will push you toward storing your files online through Microsoft's SkyDrive storage service.

NPR: Review: Microsoft Office Pricey, But Good Value

Megaupload.com billed itself as a "cyberlocker, " a means of storing large data files on distant servers.

WSJ: Megaupload Users Face Possible Deletion of Data

Cubify.com provides more easy printing options for new users with 3D apps that generate free print files and an entire 3D printing marketplace of items to choose from.

ENGADGET: 3D Systems second-gen Cube 3D printer boasts faster prints and more materials