Is everything on the internet reliable information?

Hi,

My name is Karen and I am a Resources Editor at Parkinson's UK. I am doing some research for an article that will be in the next edition of the Parkinson about using the internet to look for Parkinson's and health-related information.

Have you used the internet to look for health or Parkinson's-related information? How do you decide that what you are looking is reliable information? 

Thanks for considering!