For example,when he was a presidential candidate, Barack Obama announced his choice for vice president on Twitter.

VOA: special.2009.02.06

We have a growing number of followers on Twitter and our own popular YouTube channel.

VOA: special.2009.10.16

And you can also find us on Twitter and YouTube at VOA Learning English.

VOA: special.2009.11.16

And you can find us on Twitter and YouTube at VOA Learning English.

VOA: special.2009.12.24

You can also follow us on Twitter and YouTube at VOA Learning English.

VOA: special.2009.10.07

They are meant for looking at Web pages and placing information on Twitter.

VOA: special.2010.01.26

And you can follow our weekly programs on Twitter at VOA Learning English.

VOA: special.2009.11.05

You can also follow us on Twitter and Facebook at VOA Learning English.

VOA: special.2010.04.16

And we invite you to follow us on Twitter at VOA Learning English.

VOA: special.2010.01.21

You can also follow our weekly programs on Twitter at VOA Learning English.

VOA: special.2009.10.15

"But most of the people on Twitter that I see are actually trying to have a substantive discussion a real conversation about topics that are interesting to them.

VOA: special.2009.09.14

And you can follow us on Twitter at VOA Special English.

VOA: special.2009.11.27

And you can follow us at VOA Learning English on Twitter.

VOA: special.2010.02.11

They can also follow us on Twitter at VOA Learning English.

VOA: special.2009.10.08

On Twitter,each message, or tweet,is limited to one hundred forty characters.

VOA: special.2009.09.14

You can also follow us on Twitter at VOA Learning English.

VOA: special.2010.03.18

And you can follow us on Twitter at VOA Learning English.

VOA: special.2010.04.23

You can also find us on Twitter and YouTube.

VOA: special.2010.04.07

That's also our address on Twitter, YouTube and iTunes.

VOA: special.2010.05.03

You can also follow us on Twitter and YouTube.

VOA: special.2009.10.15

Twittering describes writing new updates on Twitter.

VOA: special.2009.02.06

A Washington landmark, Dupont Circle, became ground zero for a massive, friendly snowball fight that was organized on Twitter and other social networking sites.

VOA: standard.2010.02.07

It's on Twitter and Facebook. Jonathan Tench, Oxfam's parliamentary officer "You've had thousands of people sign up to support the Robin Hood Tax and talk about it on Twitter.

VOA: standard.2010.02.18

News agencies have depended heavily on information and images sent by Iranians using social media like Twitter, Facebook and YouTube.

VOA: special.2009.06.20

The Marine Corps has banned the use of sites like Facebook, MySpace and Twitter on its computers.

VOA: special.2009.09.14

You can also stay in touch with us on Facebook and Twitter at VOA Learning English.

VOA: special.2011.01.31

It is extremely popular on social networking Web sites including Facebook, MySpace, Twitter and YouTube.

VOA: special.2010.01.08

And you can find us on Facebook, Twitter and YouTube at VOA Learning English.

VOA: special.2010.08.04