How do you stay up with Medicare

Hey I am a fairly new PTA and have been working in an inpatient skilled nursing setting pretty much since I graduated.  I worked for Ensign company at one time during my career and was somewhat spoiled because of their  resource system that could answer any questions I had concerning medicare compliance or general simple questions that I had.  Currently I am with a company that has absolutely no resources to assist us in staying up with the medicare guidlines or with anything else for that matter.  If we have a question that we need answering we spend alot of time on the internet.  Is there anywhere that we can go that would give us in a less combersome way information reguarding medicare guidlines, ethical issues, and compliance concerns. Thank you in advance for any insight!