The Best Mac IM category in About.com's 2012 Readers' Choice Awards awards the best instant messaging client for Mac computers in 2012. Learn more about the Best Mac IM category and what makes a great instant messenger here.

Cast Your Vote for These 2012 Best IM Categories

• Best IM Client Overall
• Best Windows IM
• Best Business IM
• Best Web Messenger
• Best iPhone IM App
• Best Android IM App
• Best Blackberry IM App
• Best IM for the Mobile Web
• Best Webcam Chat
• Best Chat Rooms

Vote for the Best Instant Messengers today! The voting period closes Wed., March 21, 2012.