The Nielsen Company today released its year-end look at the most popular trends among Americans during 2009, and the Apple 3G iPhone topped the list of mobile phones in use in the United States between January and October.

The iPhone drew a 4 percent share of the embedded base of all subscribers, followed by the Research In Motion (RIM) BlackBerry 8300 Series (Curve); the Motorola RAZR V3 Series; the LG VX9100 (enV2); the LG Voyager; Samsung SPH-M540 (Rant); RIM BlackBerry 9530 Series (Storm); the LG VX9700 (Dare); LG Vu series; and the BlackBerry 8100 Series (Pearl).

In the category of top 10 Web sites accessed over mobile phones between January and September, Google Search ranked No. 1. Rounding out the top 10 were Yahoo! Mail at No. 2, followed by Gmail, The Weather Channel, Facebook, MSN Hotmail, Google Maps, ESPN, AOL E-mail and CNN News.

Top brands accessed over mobile phones during the same time period were Yahoo! at No. 1, followed by Google, MSN/Windows Live/Bing, AOL Media Network, Weather Channel, Facebook, CNN Digital Network, Fox Interactive Media, ESPN and Apple.

The No. 1 ranked mobile video channel was YouTube, followed by FOX, The Weather Channel, Comedy Central, CBS, ABC, MTV, NBC, ESPN and E!.