I encourage everyone to volunteer and share the gifts they have to offer. If you want to teach yoga, then find someone who needs more attention, who for whatever reason can't come to a regular class. Volunteer your time.
A group of individuals, inspired by President Obama's vow to make service a "a central cause" of his presidency, have banded together to create a new website that aims to become a craigslist for service. It's called All For Good.