I dont know of any place online that you can take the Ham test. All you need is a Technician license (no code required). I don't fly on the Ham band anymore because where I live there is a lot of activity in the 6 meter band ( 50 Mhz) and don't want to be shot down. I have never had this happen though. Go to
http://www.remote.arrl.org/ to check for a local examiner.
Here is a link to Ham test in California
http://www.arrl.org/arrlvec/examsearch.phtml?State=CA
Later!
Gene
KF4VMR