LinkedIn Groups have become a good source of business information but could easily derive to an incorrect behavior (eg. Use posts for commercial advertising), which can be considered bad netiquette in this network. The LinkedIn Groups normally have their own rules, but there are some general tips to be a good “neighbor” on this social network:
Align the content of your post with the group mission and policies and try to add some value (check with the group manager if you are not sure your post is appropiate)
Try not to create more than one or two discussions per week (if you need more, maybe you should consider creating your own group)
If the group does not have policies, read the atmosphere and see what other people post or the content that seems to get a lot of people’s coments.