Congratulations if you have started your own group on Linkedin! It's time to let the networking and the good discussions begin. But, what happens when people aren't clamoring to join your group as you had hoped?
Here are some best practices to get you started:

1) Invite everyone you know to join your group (not kidding).
2) Ask your close colleagues to do the same - but this time, only for people who might be seriously interested in joining.
3) As some close colleagues to start discussions on relevant topics or ones that you have already started. Network on Linkedin to find industry experts who might wish to chime in on the discussions and invite them too. There is nothing better to enhance the credibility of your group than to have experts commenting on the dialogue.
4) Promote your group often - post the group on twitter, facebook, on HR.COM! and via linkedin once or twice per day.  Ask questions, thank your members for participating, and make sure your content facilitates interaction.

FINALLY - please don't create a group in the guise of selling a product. Create a group only when you want meaningful dialogue, discussion, and even dissention about your content.  People see right through the other stuff.

If you want to discuss more with me or talk about the workplace experience, come join us!
Warmly, Rachel