Daily Enlightenment
"The Daily Enlightenment" is an email group you can subscribe to. I've been reading it for a long long time. It also lists some volunteer opportunities at the end so you have the opportunity to practice Karma Yoga. You can also read the inspirational postings at their website. This current issue has an interesting excerpt entitled "Make Your Own Mantras" -- ties in nicely with what I just wrote.
http://www.thedailyenlightenment.com/new/
http://www.thedailyenlightenment.com/new/