Since I study email newsletters, I receive many, but there's one that frequently cuts through the clutter straight to my heart. The "Daily Good" email arrives in your box pretty early in the morning and tries to set your attitude for the day. Recently, the email included this quote:

Stubbornly persist, and you will find that the limits of your stubbornness go well beyond the stubbornness of your limits. –Robert Brault.  

The quote was followed by a real-life example, and a recommendation to do or see something in a new way.

CharityFocus.org has found many ways to leverage the internet for a better society, and I highly recommend a visit.