World Backup Day
Although Adam Engst has designated every Friday the 13th as Verify Your Backups Day, this Thursday the 31st is also an important day for your data: World Backup Day. If you already back up regularly, be sure to check your backups, and if you don't, there's no better day to start — especially since online backup providers SpiderOak and Backblaze are offering special promotional pricing through 31 March 2011, plus a chance to win free storage.
Dolly Drive, Cloud Storage for Time Machine, also has a great offer for World Backup Day - a free year of storage and an 8GB iPod Touch.