A good way to keep up with my news is to subscribe to my newsletter, but that only goes out on the day a new book is released so 3 or 4 times per year.
ARCs becoming available are usually announced on Facebook and Twitter. However, the announcements risk getting lost in busy feeds. So from now on, there's another option. You can join this Facebook group. The tentative schedule posted in the group is always up to date, and all members are entitled to ARCs and free review copies if they request them.
See you there!