I have asked this before and done research but not come up with anything. I see many networking sites, like forums etc promoting themselves on linked-in and it seems they have massive traffic because of it. Is it all deceiving though? Do you need to be extremely active on linked-in, like providing quality articles to groups and so forth not just spamming your link... There are groups so large it almost seems like insanity to not tap into them but again maybe its not as easy at is looks. If there is a group called entrepreneurs with 100k members why wouldent this site make a linkedin and join that "entrepreneur" group? Thank you in advance.