should sign up for groups where you believe your customers will be active. you can search groups using the search feature and remember that groups with larger memberships show up at the top of the list. you are limited to signing up to 50 groups (and you should sign up and take advantage of all 50). when joining new groups, take some time to read through previous discussion and comments. you should always listen before speaking! you want to get a feel for what is appropriate before adding your opinions and information to the discussion. once you are comfortable that it is the group for you, go ahead and begin 