Excerpt from:  Public (Free) MySmartChannels Service End-of-Life (EOL) FAQ
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How can I get my existing content?

You may retrieve and save your content as RSS, MyST-ML, HTML, or any other feed format presently available.  If you wish to do so, please be sure to retrieve your content prior to July 31, 2007.

For more details, please see this knowledge base article:

How do I backup my blogsite content to my personal computer?
Backup your content locally as XML by saving a MyST-ML, RSS, and/or Atom feed to disk.

Syndication OptionsRSS (Rich Site Summary) Feed Atom Feed OPML (Outline Processor Language) Feed MYST-ML (MyST Markup Language) Content Feed MS-Office Smart Tag Subscription