2 similar sites, owned by the same company, but maybe run a little differently or moderated a little differently from each other. Some members prefer one over the other, I go to both sites usually on a daily basis. I know a little, some know a lot more on either site. You won't go wrong with consulting either site for any problems you might have. ONE big difference is the OA has a sub-section called 'Off-Topic" which includes the "hotbox". There is a lot of political discussion, and sometimes arguing that happens there, and only there, as anywhere else in the forum will get you a time-out. I have made dozens of friends on both sites. Met and ridden with many of the same. I don't do other social media sites, but THESE 2 are my fix for that. Welcome from central Pa. high atop the Alleghenies.