You have to activate it. I believe it is in Notification Center System Preferences. If I am wrong, what I actually did was choose to share a link in Safari and choose, Twitter, as the option and it walked me through configuring it on the Mac. Take Care John D. Panarese Director Mac for the Blind Tel, (631) 724-4479 Email, john@xxxxxxxxxxxxxxxxxx Website, http://www.macfortheblind.com APPLE CERTIFIED SUPPORT PROFESSIONAL FOR MAC OSX LION AUTHORIZED APPLE STORE BUSINESS AFFILIATE MAC and iOS VOICEOVER TRAINING AND SUPPORT On Aug 13, 2012, at 8:15 AM, Frank Ventura <frank.ventura@xxxxxxxxxxxxxxxxx> wrote: > Does Mountain Lion have a built in Twitter client? If so where is it > configured? > thanks > Frank Ventura > Email: frank.ventura@xxxxxxxxxxxxxxxxx > Voicemail: 781 492-4262 > Imessage: frankmventura@xxxxxxx > > *Sent from my Mac Book Air* > ************ You are subscribed to the mac4theblind mailing list. The url for this list, where one can unsubscribe or make any changes to their list subscription is: //www.freelists.org/list/mac4theblind The list archive is located at //www.freelists.org/archive/mac4theblind/ All emails intended for the list owner can be sent to: john@xxxxxxxxxxxxxxxxxx