The minority of Mac users still browsing with Internet Explorer need to consider moving to another browser very quickly, as Microsoft plans to discontinue support for IE beginning Dec. 31. The news, which came in a statement on Friday, may not have come as a complete surprise to Mac users: Microsoft announced back in June 2003 that it was ending Mac support for IE. Microsoft has not upgraded the software in three years, leaving IE 5--rather than version 6, which is available for Windows--as the most recent version available to Mac users. While IE for Mac will continue to be...