LinkedIn is kind of hard to figure out how their business plan works.<p>They are a social network for professionals, companies have a profile, people post resume stuff on it, recruiters use it to find people for contracts or jobs.<p>I have people visit my profile, but I can&#x27;t see who they are unless I pay a subscription.<p>I list Visual BASIC 6.0 as a skill and there is still a small demand for work with it in legacy software.<p>I get all kinds of LinkedIn email from groups I joined, some of the email is basically spam and makes me want to quit the group. I made a message filter in Thunderbird to move all LinkedIn email to my LinkedIn folder. I check it to see if anything important is there, most of it is not important.<p>Facebook recently made a Facebook at Work site for employees to communicate with each other. I think it competes with LinkedIn.