I have founded the Antkeeping project and the Ants of North America project on iNaturalist. Both projects are for quite different purposes: Antkeeping is for recording your colonies and queens, nuptial flights, and alates. What it is not for is for generic ant observations. Ants of North America is for any type of ant observation in North America, captive or wild.
Not on iNaturalist? I would recommend signing up. It is very useful for ID’s, and it is my primary source for information in all aspects of taxonomy and biology. Here is my live iNaturalist feed: