It’s required by California state law to post all bills online along with associated vote tallies in committee and floor votes. The vote types are as follows:
- Ayes (in favor),
- Noes (against),
- and No Vote Recorded (NVR; the equivalent of abstaining).
It's free to subscribe. But - IMO - it is likely that the OpenStates.org site monetizes the subscriber data somehow.
As far as CA-specific 'follow what a piece of legislation is doing' there's this site from the California state government: https://www.assembly.ca.gov/informationtohelpyoufollowthepro...