There are many ways to figure out what mushroom you're looking at. Be forewarned that remote mushroom ID can be challenging. At a bare minimum, to be useful, pictures MUST include both the top and the underside of the mushroom. But there are a lot of other things you might also need to look at, depending on the species. Please see this description of how to take photos for identification, and our video on Mushrooms 101.
In case of possible mushroom poisoning, contact the 24-hour National Capital Poison Control Center at 1-800-222-1222. Several MAW experts work with them on mushroom poisoning cases and will do their best to assist you.
MAW members participate in two community science projects that can help with ID:
Uploading your mushroom photos to these projects makes them part of a database that can be used by scientists and conservationists studying species distribution and biodiversity -- and it's a great way to keep a "life list" of mushrooms you've seen.
Local Facebook groups are another resource:
MAW's monthly meetings always include an ID table where club experts will help identify mushrooms. Send photos to firstname.lastname@example.org and they might be included.
Feel free to email email@example.com and we'll see if we can help you out! Again, please review this description of how to take photos for identification, and our video on Mushrooms 101, so that you can send us the information we need to make a good ID. If you have posted pictures to Mushroom Observer or another site, but not gotten a reaction in a reasonable time, it would be ideal for you to send our identifiers a link to your observation.