This is one of the website that is used by professionals. Every small and big founder have their account on this website. I suggest you if you are a student then start using it daily. Because it will help you alot in future. You can make new contact with professionals who are madter in your field.
One can also find the job related to their profession. Also find referrals for their job recommendations.
LinkedIn also has premium membership for searching jobs and for taking and sending messages to other peoples.
One can also post their achievements and resume and build their profile. Also LinkedIn profile is a sex resume for any one.
It also has a learning section. Where there are some courses realted to industry.
Only the one line is that if you are a student the start using it.