The official Google Blog has published a full list of Twitter Accounts held by each of the key Google departments. Now you can communicate directly with the development teams and be kept informed of changes in real time. It’s a big list so here goes:

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 our visual image search
twitter.com/GoogleNews – latest headlines via Google News
twitter.com/GoogleReader – from our feed reader team
twitter.com/GoogleVoice – updates & info on Google Voice*
twitter.com/iGoogle – news & notes from Google’s personalized homepage
twitter.com/GoogleStudents – news of interest 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 to build your favorite places
twitter.com/EarthOutreach – Earth & Maps tools for nonprofits & orgs
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 – looking out for AdWords questions and tech issues
twitter.com/AdWordsProSarah – Google Guide for AdWords Help Forum
twitter.com/GoogleAnalytics – insights for website effectiveness
twitter.com/GoogleAdBuilder – re building display ads
twitter.com/GoogleAffiliate – info for publishers from Google network advertisers*
twitter.com/GoogleRetail – for retail advertisers
twitter.com/GoogleTVAds – info on our digital system for more measurable TV advertising*
twitter.com/TechnologyUK – for U.K. tech advertisers
twitter.com/UKretail – for U.K. retail 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 – Data APIs provide a 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 – about 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*