Q. How do I check on an order I placed with one of Amazon's independent sellers if I didn't get a shipping e-mail or tracking number?
A. You can check the status of any order placed through Amazon -- even if it was with a third-party seller -- in your account settings. To do so, go to Amazon.com, log in and click the Your Account link at the top of the page. Select "Your Orders" from the menu.
Your Amazon orders will be listed, starting with the most recent purchases, including those from independent sellers. Next to the order description are buttons for things like tracking information, product returns, reviews and seller feedback. There should be a button labeled Contact Seller if no tracking information for was provided.
Click the Contact Seller button to create and send a message to the person or company through Amazon's Buyer-Seller messaging service.
If you are not satisfied with the response (or do not get one), you can file a claim with Amazon, which guarantees your order if it is not delivered -- or arrives damaged or defective. Amazon has more information on third-party sellers on a customer help page.
Leaving a Facebook Group Conversation
Q. Is there a way to turn off a multiperson message on Facebook if I don't want to participate anymore?
A. Facebook allows group conversations among two or more members, which can be useful for planning events and gatherings. If you do not wish to be included or receive notifications about a particular group message, you can unsubscribe from it. The other participants will be notified that you have left the conversation, however, so you cannot really sneak out.
To be on your way, log into Facebook, click the Messages icon at the top of the page and select the conversation you wish to leave. Click the Actions menu at the top and select Leave Conversation.
The same Actions menu also includes a Mute Conversation command. If you do not want to leave the conversation -- but would prefer not to get a notification every time someone posts a new message -- choose the mute option.
This article originally appeared in The New York Times.