TJ Manotoc takes you in a tour of the best in social media in 2009: the year of the web.

Part 1: The Yellow Storm | The Citizen Journalist | The Numbers Race
In this first part, iWorld looks at the significance of social media in the lead-up to the 2010 elections, the race for users of the major social networking services, and how Filipinos used the internet in honoring an icon of democracy.

Part 2: Digital Bayanihan | Web Exclusives | Interactive
In the second part of this yearend special, watch how netizens particiaped in an online Bayanihan, and how viewers are now able to interact with celebrities and politicians without leaving their desktops. Also see how politicians eyeing a 2010 win are using social media to bring their message across to voters.

Part 3: News As It Happens | The Twitter Revolution | iPresident
In the third part of the special, watch how citizen journalism is changing the landscape of mass media.

Part 4: When Social Networks Attack | Twitter Wars | The Pinoy Hero
The good and the bad side of social networking sites - from libel suits to selecting everyday heroes - is the focus of the fourth part of this special.

Part 5: The Year in Viral Videos
For the last part of this special, we feature the best viral videos of the year.