You’ve probably connected with all sorts of people on LinkedIn — colleagues you’ve worked with for years, professional acquaintances and even people you barely know.

But what matters most: the quantity of connections in your LinkedIn network or the quality? What’s the best way to connect with people who could give your career a significant boost? And how do you ensure that you and your contacts share a mutually rewarding relationship?

In this special bonus installment of “Financial Etiquette: Workplace Edition,” LinkedIn’s career expert, Nicole Williams, gives you tips on how best to use the world’s largest professional networking site to advance your career.

How do you use LinkedIn to advance your career? How do you decide whether to accept a LinkedIn invitation?