As I mentioned in previous posts, LinkedIn Groups allow you to be virtually connected to a number of people that share the same interest.  The largest group, Executive Suite, has _95,000_ members as I am writing this blog…that is more than double the number of connections that the most connected user, Ron Bates, has!  If you join this group, you will be able to directly send an E-Mail as well as invite, without knowing the E-Mail address of, anyone in this group!  Whether or not you use groups as part of your invite strategy is another story, but the ability …