Aother major update for Hoop.la, this one focusing on support for mentions, whereby you can specifically reference a community member so that they can be notified about the post. This was one of our most voted-on suggestions in our development queue.
To use mentions, type an @ symbol and then begin typing the displayed name of the person you wish to reference. You'll see a dropdown menu of potential matches on the name. Select the proper person and a mention link will be auto-generated. Once you make the post, that person will receive a special notification about the post.
Note that @mentions are only supported in posts, not in subjects, and are not supported in chat room/event posts currently. Also note that users control whether they want to be notified about mentions in their notification preferences (the default is to be emailed about mentions, however).