The first is that you look at who are your current customers, who are your prospects, what groups are they in, and join those same groups if they’re relevant and not too title specific to a marketer or a different field that you’re not in. But really starting with the folks that you already are working with and using them to figure out which groups are most relevant. This is also especially important because I think it was about a year ago, LinkedIn now made all the groups private. So you can’t go in and look at what’s going on in the group. And it’s really hard to know which ones are the best ones to join just by doing simple searches on say the title of the group. So, start with the folks that you know.
At our agency, we work with sites of varying sizes, from very large to quite small, and recently, we have noticed a trend at the enterprise level. These sites aren’t relying as much on Google for traffic any more. Not only are they not relying on Google traffic, but also, the sites are getting less than 10 percent (or slightly more) of their organic traffic from the search giant.