Social Media Twitter List by Enrico Gualandi on Listorious

YouTube

Tweets on YouTube news, trends, and — of course — videos.

13,262,751 followers | Follow

Twitter

Always wondering what's happening.

10,729,605 followers | Follow

TwitPic

Share photos and videos on twitter

7,442,416 followers | Follow

Facebook

Giving people the power to share and make the world more open and connected.

3,864,372 followers | Follow

Ustream

Official Tweets about the best live events, updates, and news from Ustream.

1,487,381 followers | Follow

Twitter Italiano

L'account della community italiana su Twitter! Ti sei appena iscritto e non sai come muoverti? Leggi qui: http://t.co/L4y0Qcz

1,062,546 followers | Follow

Pinterest

Pinterest is an online pinboard. Organize and share the things you love.

792,579 followers | Follow

TripAdvisor

Helping travelers plan and have the perfect trip. Your host is Amanda. Say hi.

548,725 followers | Follow

Shorty Awards

The Shorty Awards honor the best people producing social media content (http://shortyawards.com). The Shorty Industry Awards honor the best brands & agencies.

528,624 followers | Follow

Klout

The standard measure of online influence. Do you have Klout? -Tweets from http://klout.com/#/klout/list/14897. For support please go to http://support.klout.com

443,660 followers | Follow

foursquare

foursquare helps you explore the world around you. Meet up with friends, discover new places, and save money with Specials! Questions/support: @4sqSupport

423,912 followers | Follow

Tumblr

Follow the world's creators. Questions? http://tumblr.com/help

269,655 followers | Follow

Dailymotion

Compte officiel de Dailymotion. Blog : http://blog.dailymotion.com/fr Follow us in english @DailymotionUSA

244,214 followers | Follow

GetGlue

GetGlue is a social network for entertainment. Check-in & rate things to discover new favorites, see what your friends are into, get stickers & win free stuff.

200,432 followers | Follow

Myspace

With the largest music library that you can listen to for free, Myspace is where you go to watch music videos, connect with artists & promote your art online.

198,206 followers | Follow

Flickr

Hi and welcome to the official Flickr Twitter page! Flickr is almost certainly the best photo sharing community in the world. Looking forward to see you around!

187,390 followers | Follow

Formspring

Discover, share & smile :) The Spring is here listening to its fans & followers! SupportTeam tweets: @formspring_help. Site updates: http://status.formspring.me

174,226 followers | Follow

LinkedIn

Connecting the world's professionals to make them more productive and successful

164,533 followers | Follow

Foodspotting

Find and recommend dishes, not just restaurants. Visit our site and download our app!

161,826 followers | Follow

Last.fm

Coming to you from Last.HQ. Discover more music with Last.fm.

119,269 followers | Follow

LOOKBOOK.nu

Fashion inspiration from real people around the world.

110,065 followers | Follow

posterous

Share smarter with Posterous Spaces. Easily share anything publicly or privately by web, email, or mobile app. For support please visit help.posterous.com

80,927 followers | Follow

Vimeo

The official Twitter account of the official best video platform on Earth. Follow us for news and an infinite supply of amazing videos.

70,868 followers | Follow

SlideShare

The world's largest community for sharing presentations online.

63,692 followers | Follow

Listorious

Making it easy to find who matters on any topic with the best Twitter people search on the web

63,354 followers | Follow

Gowalla

Go Out With Gowalla

35,476 followers | Follow

RunKeeper

Track, measure, and improve your fitness. http://www.runkeeper.com

32,310 followers | Follow

Anobii

Together we find better books

16,801 followers | Follow

Miso

Miso makes TV watching better.

10,661 followers | Follow

Plaxo

Your address book for life. Follow us, we will follow you.

9,353 followers | Follow

friendfeed

9,250 followers | Follow

Blip.fm

Twitter for Music

8,617 followers | Follow

Flixster

Stop watching bad movies.

8,110 followers | Follow

Flavors.me

Allows anyone to make a branded web presence in minutes, using aggregated content from around the web.

7,545 followers | Follow

Netlog

Europe's largest youth community

7,293 followers | Follow

friendster

Living the game.

6,878 followers | Follow

Spreaker

Talk is Cheap. Broadcast live. Anywhere. Anytime.

6,486 followers | Follow

Viadeo

Professional Social Networking. Everything that's new in the social media and online networking world. For more, check out http://blog.viadeo.com/.

5,624 followers | Follow

gogobot

The world's largest source of travel advice from friends in the know. Be inspired everyday by top tips and images from over 60,000 worldwide destinations.

3,967 followers | Follow

meadiciona

Sou uma ferramenta para gerenciamento de contatos on-line!

3,936 followers | Follow

12seconds

Keeping it pithy.

3,689 followers | Follow

5min Media

5min Media is the leading syndication platform for online video. Check us out!

3,317 followers | Follow

soup.io

The Soup.io team: @c3o, @cypher and some others :)

2,940 followers | Follow

Biznik Inc.

Tweets by Matt, Biznik's Director of Community. Biznik is a community for indie business people -- where collaboration beats competition.

2,134 followers | Follow

Wooxie

Free Social Networking Site for blogging. Earn with your articles & blog on one of the best social networking sites on the Planet!

2,127 followers | Follow

XING_com

official account of XING

2,081 followers | Follow

vodpod

The People-Powered Video Network.

1,824 followers | Follow

Hot Potato

Share what you're doing with friends and connect with others who have similar interests. Why do it alone?

1,570 followers | Follow

Osnapz

Rewarding your social media contributions

1,549 followers | Follow

Foursquare Badges

Foursquare Badges è il primo progetto in italiano su foursquare e i suoi badges: amanti di 4sq seguiteci! Siamo anche su Facebook http://fb.me/foursquare.badges

1,411 followers | Follow

Listal

1,125 followers | Follow

2Spaghi

Benvenuti nel feed del più grande social network d'Italia dedicato agli amanti (mangioni) del buon cibo!

1,115 followers | Follow

score.ly

We're in alpha. But you should still check us out.

1,105 followers | Follow

Togetherville

Online Neighborhoods for Kids and Their Grownups :)

964 followers | Follow

StatusNet, Inc.

Open source microblogging platform and microblog hosting service

805 followers | Follow

Bundlr

Bookmark and discover amazing content with @bundlr.

779 followers | Follow

Hollrr

Shout about the things you love!

711 followers | Follow

DandyID

Manage your Online Identities

657 followers | Follow

The Yonkly Team

Create your own Twitter and make money on the best hosted platform.

604 followers | Follow

D-Sign

Agenzia di Comunicazione e Web Agency di Bologna: ci occupiamo di Pubblicità, Web Design, Marketing, Advertising, iPhone Apps, Graphic Design, SEO, Social Media

363 followers | Follow

Miio

Meet new people that like the same things you do, for chatting, sharing, socializing and having fun.

326 followers | Follow

Clingleapp

Get Clingle and discover an amazing new way to share your life's moments with friends and family! Grab it here: http://clingle.com/download.php

284 followers | Follow

Mobnotes

Mobnotes reminds you where you have been, and lets your friends know where you are going.

224 followers | Follow

Glossi

Glossi is a simple and beautiful way to present your social media life. Integrate with Twitter, foursquare, Instagram, Tumblr and more. Tweets by @sayitaintsho.

200 followers | Follow