The official Google blog recently listed some of its active accounts on Twitter. The list includes many programs and initiatives across the company. Following is the current list of Google accounts on Twitter:

twitter.com/Google- our central account

twitter.com/Blogger- for Blogger fans

twitter.com/GoogleCalendar- user tips & updates

twitter.com/GoogleImages- news, tips, tricks on visual image search

twitter.com/GoogleNews- latest headlines

twitter.com/GoogleReader" latest information from our feed reader team

twitter.com/iGoogle- news & updates from personalized homepage of Google

twitter.com/GoogleStudents " important news relevant to students using Google

twitter.com/YouTube- for YouTube fans

twitter.com/YouTubeES- en Espanol

twitter.com/GoogleAtWork- solutions for IT and workplace productivity

Geo-related

twitter.com/SketchUp- Google SketchUp news

twitter.com/3DWH- SketchUp's 3D Warehouse

twitter.com/Modelyourtown- 3D modeling

twitter.com/EarthOutreach- Earth & Maps tools for nonprofits & organizations

twitter.com/GoogleEarth- updates from the Google Earth team *

twitter.com/GoogleMaps- uses, tips, mashups

twitter.com/GoogleSkyMap-Android app for the night sky

Ads-related

twitter.com/AdSense- for online publishers

twitter.com/AdWordsHelper" questions and tech issues from AdWords

twitter.com/AdWordsProSarah- Google Guide for AdWords Help Forum

twitter.com/GoogleAnalytics,/u>- insights for website effectiveness

twitter.com/GoogleAdBuilder- re-building display ads

twitter.com/GoogleAffiliate" news and information from Google network advertisers for publishers*

twitter.com/GoogleRetail- for retail advertisers

twitter.com/GoogleTVAds- info on digital system for TV advertising*

twitter.com/TechnologyUK- for U.K. tech advertisers

twitter.com/creativesandbox- for advertising agencies*

twitter.com/InsideAdWordsDE- for German AdWords customers

twitter.com/GoogleAgencyDE- for German ad agencies

twitter.com/AdSensePT- info for Portuguese-language publishers

twitter.com/AdWordsRussia- AdWords news & tips in Russian

twitter.com/DentroDeAdWords- Spanish updates from the Inside AdWords blog

twitter.com/AdWordsAPI- AdWords API tips

Developer & technical

twitter.com/GoogleResearch- from our research scientists

twitter.com/GoogleWMC- Google Webmaster Central

twitter.com/GoogleCode- latest updates for Google developer products

twitter.com/GoogleData- standard protocol for reading and writing web data

twitter.com/app_engine- web apps run on Google infrastructure

twitter.com/DataLiberation- our initiative for complete import/export of all data

twitter.com/GoogleMapsAPI" info on using Google Maps embedded in websites

twitter.com/GoogleIO- Google's largest annual developer event

Culture, People

twitter.com/googletalks- notes from our @Google speaker series

twitter.com/googlejobs- the voice of Google recruiters

Country or Region

twitter.com/googlearabia- news from the Google Arabia Blog*

twitter.com/googledownunder- Google activities in Australia & New Zealand

twitter.com/googlebrasil- News & info for Brasil*

twitter.com/GoogleDE- Google in Germany

twitter.com/GoogleKorea- News & notes in Korean*

twitter.com/GoogleLatAm- Latin America (en Espanol)

twitter.com/GooglePolicyIt- Notes on Google policy issues in Italy

Update: Additions indicated by *

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