First off, please make sure to be careful when applying for scholarships and grants. There are a lot of great scholarships out there but there are a lot of scams as well. Make sure to check the validity of scholarships on sites like this:
That being said, the US government also lists a lot of available grants and scholarships:
https://studentaid.ed.gov/sa/types/grants-scholarships https://studentaid.ed.gov/sa/types/grants-scholarships/finding-scholarships http://www.state.gov/m/dghr/flo/c21963.htm
You should also be sure to check your local city, county, and state official sites for options specific to you.