I gotta ask this question, because I am seeing TOO many of my friends and colleagues getting their private email boxes HACKED because they fell victim to how linkedin.com tricks them into joining!
Apparently when someone joins linkedin.com they are "invited" or persuaded to all linkedin.com "invite" the new member's friends. What happens next it they GET FOOLED into giving up their personal email box password to allow linkedin.com to grab ALL of the member's email addresses of their friends, work, bank accounts, EVERYTHING they have received and EVERYTHING they have sent.
What happens next is that linkedin.com STARTS SENDING SPAM out to EVERYONE by changing the email sender to the name of the member, making me think that my friend or colleague has privately emailed me from their account. AND THERE'S NO STOPPING the spam emails.
I finally had to get on the phone and call everyone (at MY TIME and expense) and tell them to CHANGE THEIR password and STOP THE LINKEDIN.COM SPAMS!
What's worse, I went to see how this linkedin.com works, I got swindled into their gimmick that I could VIEW a PROFILE by simply signing up for "free", and then they WANT TO CHARGE ME from $240.00 to $900.00 a year to LOOK at from 3 to 25 "profiles" a month!!!
What a rip off!
If I want to Google people and use other free internet tools and get the low-down on their "profiles", I can do it for FREE, rather than be parlayed into giving these guys.
Note: This is, OF COURSE, my personal opinion and view from what I found. If someone from linkedin wishes to correct me, then PLEASE PROVE IT!