Yet another reminder for me of how dependent I (we) have become on IM for daily business tasks. Microsoft’s Windows Live Messenger, Hotmail and possibly other services were largely unavailable yesterday due to a widespread problem with their Live ID logon service.

“According to the Redmond company, the problem involves Windows Live IDs, which are used to log users into its services.“

I use a number of public IM services, including the one provided by Microsoft, to communicate with business associates and friends. Yesterday’s outage, while not more than a nuisance to me, proved once again that it is wise not to rely on a single service or provider for business communications.

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