Mute annoying posts
A post you commented on could quickly become popular and suddenly you find responses to it are spiraling out of control. Fear not, Google+ has a "Mute" function. To stop receiving updates from a post and remove it from your stream, click the arrow at the top of the post, then select "Mute this post." To unmute it, follow the same steps and select "Undo mute."
For more, see Computerworld's continuing coverage page on Google+