Today is Giving Tuesday, and in just six years, the day has become a global movement.

Millions of people, spanning 100 countries participated in the event last year, donating to the organizations that mean the most to them.

Giving Tuesday falls on the Tuesday after Thanksgiving, kicking off the season of giving.

It was started by the United Nations Foundation and 92nd Street Y in Manhattan and has been branded on social media as #GivingTuesday.

People can donate to bigger names such as the American Red Cross and Salvation Army, but organizers say one of the best ways to get involved is in your own community.

People should find a local charity they are passionate about or that has significant meaning to their life.

For organizations like the National Alliance on Mental Illness of Southwest Connecticut, Giving Tuesday isn't just about raising money.

“More than the donations, we want people to know we are here,” says Karen West. “It's an opportunity to let people know we exist. There are a lot of people who are struggling.”

If you are looking to participate in Giving Tuesday, and still trying to figure out which organization to donate to, click here for more information.