The ARRL Ohio Section website has a lot of information about amateur radio that is primarily focused on Ohio.
It is the go to place to find out what is happening in the Hobby for the Ohio Section. It also includes important information and resources for Ohio ARES. If there are any changes or activities relating to Ohio ARES, the information is there.
The ARRL Ohio section website also has contact information for everyone that has a role/position in the ARRL Ohio Section Cabinet. I highly recommend becoming familiar with this website and subscribing to the Ohio Section News letters.
Ohio Section ARES page
ICS Course information, shows a high level view how the courses fit together