2010 CNN Heroes call for nominations

"CNN Heroes gave me a voice much louder than what I used to have and it has contributed much to our cause. The level of awareness to do good for others became so inspirational too as many organizations even in the government here and abroad wanted to adapt the pushcart system to cater to street children and those displaced by war," said Peñaflorida.

CNN is inviting nominations for individuals who have done inspiring work in any of the following categories:

Championing Children ' commitment to the welfare of young people

Community Crusader ' commitment to those creating solutions to a local problem or social issue

Defending the Planet ' commitment to those whose innovative ideas are helping preserve and protect the environment

Medical Marvel ' commitment to those dedicated to enhancing human health

Protecting the Powerless ' commitment to those advancing the cause of human or equal rights

Young Wonder ' under 25s who have achieved outstanding charitable work

Significant Asian Heroes honored in past years include 2009 CNN Hero of the Year Efren Peñaflorida from the Philippines , who won the award with more than three million votes cast on www.CNNHeroes.com for him. Peñaflorida established the Dynamic Teen Company which gives Filipino youth an alternative to gang membership through education.