Anyone who has used Google+ for more than a few hours has, no doubt, discovered a very high level of engagement. Users are sharing great content and are eager to share opinions on just about any topic, and there are many ways to share and connect. One can share, re-share, comment, +1, tag others, and even comment on comments and re-share re-shares. How, then, does one effectively participate? Are there established rules of etiquette for all of this communication?