Hi Makjin,
Glad you asked this,
Yes, Indeed, LinkedIn is an amazing source of traffic if you are targeting professionals through organic ways by joining targeted groups. Create your own groups. Customize your profile links. Create your own content for the pages. Google ranking for your LinkedIn profile to improve your traffic. You can try giving a creative and attractive profile headline, complete your profile with all the details, add groups and connections, strengthen your links with social profiles etc.