Beliefnet has a Gratitude journal that you can read and post in. Over 4000 posts so far.

Check out the collection of Thanksgiving sermons and Thanksgiving Prayers.

Here’s one of my favorite meal prayers:

Blessed be the Earth for giving birth to this food
Blessed be the Sun for nourishing it
Blessed be the Wind for carrying its seed
Blessed be the Rain for quenching its thirst.

Blessed be the hands that helped to grow this food,
To bring it to our tables
To nourish our minds, bodies, and spirits.

Blessed be our friends, our families, and our loved ones.
Blessed Be.